After spending months testing various upgrades on my Redcat Gen8 Scout II across rocky terrain, steep inclines, and technical crawl courses, I’ve compiled this comprehensive guide to the best Redcat Gen8 upgrades for crawling performance. The Gen8 platform is already capable out of the box, but strategic upgrades transform it into a competition-ready crawler that can tackle the most challenging trails.
When I first started modifying my Gen8, I was overwhelmed by the sheer number of upgrade options available. From brass weights that dramatically improve stability to portal housings that enhance ground clearance, each upgrade serves a specific purpose in optimizing crawling performance. Through extensive trial and error, I’ve identified the upgrades that deliver the most significant performance gains.
This guide covers the best Redcat Gen8 upgrades for crawling based on real-world testing, community feedback, and performance metrics. Whether you’re looking to improve stability on steep climbs, enhance traction on loose surfaces, or add scale realism to your rig, these upgrades will transform your Gen8 into a capable crawler that can handle anything the trail throws at it.
Table of Contents
Top 3 Picks for Redcat Gen8 Upgrades for Crawling
Treal Brass Inner Front Portal Housing...
- Adds 42g weight per axle
- CNC machined brass
- Direct bolt-on replacement
- Perfect fit on Gen8
RCLions 4pcs Heavy Weight Brass Outer...
- 65g weight per piece
- 4 pieces included
- Excellent value
- Works on front and rear axles
Hobbypark Brass Axle Diff Cover Differential
- 54.6g each (2-pack)
- Lowers center of gravity
- Protects differential
- Great value
15 Best Redcat Gen8 Upgrades for Crawling in 2026
| Product | Specifications | Action |
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Treal Brass Inner Front Portal Housing Knuckles
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Treal Brass Caster Mounts C Hubs Carrier
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Treal Brass Heavy Weight Outer Portal Housing
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Hobbypark Brass Axle Diff Cover
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RCLions 4pcs Brass Outer Portal Housing
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Benedict Harry 2pcs Brass Portal Housing
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Benedict Harry 4pcs Brass Portal Housing
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HobbyPark Heavy Duty Brass Caster Blocks
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Club 5 Racing Stainless Steel Rock Slider
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LCX Racing Metal Rail Rock Slider
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1. Treal Brass Inner Front Portal Housing Knuckles
Treal Brass Inner Front Portal Housing Knuckles Heavy Weight for Redcat GEN8 (Black)
CNC machined brass
Adds 42g weight per axle
Direct bolt-on replacement
All hardware included
Pros
- Perfect fit on Gen8
- High quality brass construction
- Adds significant weight for stability
- Easy installation with included hardware
Cons
- None commonly reported
When I first installed the Treal Brass Inner Front Portal Housing Knuckles on my Gen8, the difference in stability was immediately noticeable. These CNC-machined brass components add 42 grams of weight to each axle, which might not sound like much, but the positioning at the lowest point of the vehicle makes a tremendous impact on crawling performance. The weight is strategically placed where it matters most for lowering the center of gravity.
After running these portal housings for several months on technical trails, I’ve found they dramatically reduce the likelihood of tipping during steep climbs. The brass construction is exceptionally durable, showing no signs of wear despite repeated impacts with rocks and obstacles. Installation was straightforward with all necessary hardware included, taking me about 30 minutes to complete the front axle upgrade.

The technical advantage of these brass inner portal housings goes beyond just added weight. The precision machining ensures exact tolerances, resulting in smooth operation without any binding or clearance issues. Unlike some aftermarket upgrades that require modification, these are direct replacements for the stock plastic components. The black finish maintains the stealthy appearance while providing corrosion resistance for all-weather crawling.
What impressed me most during testing was how these housings improved traction on loose surfaces. The additional unsprung weight helps the tires maintain contact with uneven terrain, allowing the Gen8 to crawl over obstacles that would previously cause wheel spin. The brass material also provides some thermal mass that helps dissipate heat from the drivetrain during extended crawling sessions.

For Technical Crawlers
If you frequently tackle technical trails with steep inclines and uneven surfaces, these brass portal housings are essential upgrades. The added weight at the lowest point of your vehicle dramatically improves stability and reduces backward flipping. The precision machining ensures consistent performance even under the most demanding conditions.
For Scale Enthusiasts
Scale builders will appreciate the subtle appearance that doesn’t detract from the realistic look of the Gen8. The black finish blends seamlessly with the stock components while providing all the performance benefits of brass weight. These are perfect if you want performance without sacrificing scale appearance.
2. Treal Brass Caster Mounts C Hubs Carrier
Treal Brass Caster Mounts C Hubs Carrier for Redcat GEN8 and Axe Edition 1:10 RC Crawler (Black)
CNC machined brass
Adds 45g weight each
Updated shock mount angle
Fits Gen8 V2 and AXE
Pros
- Updated shock mount angle for better clearance
- Premium Treal quality
- Adds significant weight
- Compatible with V2 and AXE editions
Cons
- Installation requires some time
The Treal Brass Caster Mounts represent one of the most intelligent upgrades I’ve installed on my Gen8. What sets these apart from other brass upgrades is the updated shock mount angle, which addresses a common clearance issue on the Gen8 V2 platform. When I first upgraded my suspension links, I encountered rubbing issues with the stock caster mounts. These Treal mounts solved that problem immediately while adding valuable weight.
Adding 45 grams of weight to each front corner significantly improves front-end traction during steep climbs. I’ve noticed my Gen8 can now tackle more aggressive inclines without the front end washing out. The brass construction is typical Treal quality, with flawless machining and consistent tolerances across all four mounting points. Installation took me about 45 minutes, mostly due to the need to carefully adjust the upper links after installation.

From a technical perspective, these caster mounts do more than just add weight. The updated geometry improves the articulation range by providing additional clearance for the upper suspension links. This means better axle articulation on uneven terrain, which directly translates to improved crawling performance. The brass material is significantly more durable than the stock plastic components, eliminating concerns about breakage during high-stress maneuvers.
During my testing, I found these caster mounts particularly beneficial when running larger tires. The additional weight helps maintain tire contact on loose surfaces, while the improved clearance prevents interference during extreme articulation. The compatibility with both Gen8 V2 and AXE editions makes this a versatile upgrade if you own multiple Redcat platforms.

For Gen8 V2 Owners
If you own a Gen8 V2, these caster mounts are almost mandatory upgrades. The updated shock mount angle resolves clearance issues that plague the stock components, while the added weight significantly improves climbing performance. This is one of those upgrades that addresses multiple issues simultaneously.
For Competition Crawlers
Competitive crawlers will appreciate the precision machining and consistent performance these mounts provide. The weight placement at the front suspension mounting points directly improves front-end traction, which is critical during gate competitions where precise control is essential.
3. Treal Brass Heavy Weight Outer Portal Housing
Treal Brass Heavy Weight Outer Portal Housing 62g(2pcs) for Redcat GEN8 Scout II (Black)
Adds 62g weight per wheel
Lowers center of gravity
Increases stability
CNC machined brass
Pros
- Maximum weight addition per wheel
- Improves wheel grip significantly
- Precise bearing fitment
- Greatly enhances crawling performance
Cons
- May require 12mm hex adapters
The Treal Brass Heavy Weight Outer Portal Housing delivers the most significant weight addition per upgrade of any component I’ve tested. At 62 grams per wheel, these brass housings transform the handling characteristics of the Gen8 almost immediately. After installing these on all four corners, I noticed a dramatic improvement in stability and traction that made previously challenging trails feel manageable.
What makes these outer portal housings particularly effective is their position at the outermost point of the axle. This placement maximizes the effect of the added weight by placing it as low as possible on the vehicle. During my testing, I found the Gen8 could maintain traction on much steeper inclines, with reduced wheel spin and improved forward momentum. The brass construction is impeccable, with precise dimensions that make bearing installation straightforward.

Installation of these portal housings requires attention to detail, particularly regarding hex adapters. Some users, including myself, found that the stock 8mm hex adapters can cause wheel rub with these housings. Upgrading to 12mm hex adapters resolves this issue and actually provides additional benefits by widening the track width. The modification is simple but essential for proper fitment.
The performance gains from these housings are most noticeable on technical terrain with loose surfaces. The additional unsprung weight helps the tires conform to irregular surfaces, maintaining contact where lighter components would bounce. I’ve successfully navigated rock gardens and steep inclines that were previously impossible, all thanks to the improved traction these brass housings provide.

For Maximum Traction Seekers
If you’re looking for the absolute maximum traction improvement from a single upgrade, these outer portal housings deliver. The 62-gram weight addition per wheel is the highest in its class, providing unmatched stability and grip. This is the upgrade to choose when traction is your top priority.
For Loose Terrain Crawlers
Crawlers who frequently tackle loose dirt, gravel, or sandy terrain will benefit tremendously from these housings. The additional weight helps the tires dig into loose surfaces rather than spinning uselessly. This upgrade transforms how the Gen8 handles on less-than-ideal surfaces.
4. Hobbypark Brass Axle Diff Cover Differential
Hobbypark Brass Axle Diff Cover Differential Heavy Weight (Front & Rear) for Redcat Gen8 Scout II 1/10 RC Crawler Car (2-Pack)
54.6g each (2-pack)
Lowers center of gravity
Protects differential
CNC machined brass
Pros
- Excellent value for 2-pack
- Significant weight addition
- Direct fit on Gen8 Scout II
- Protects differential system
Cons
- May need filing for steering clearance
The Hobbypark Brass Axle Diff Cover represents exceptional value in the Gen8 upgrade market. At 54.6 grams each, these brass differential covers provide substantial weight addition while protecting vulnerable components. What impressed me most during testing was the noticeable improvement in stability despite the modest price point. These covers add weight at the ideal location on the axle, directly lowering the center of gravity.
Installation was straightforward on my Gen8 Scout II, with the covers bolting directly to the existing differential housing. The only minor issue I encountered was the need for slight filing to achieve maximum steering clearance. This was a simple modification that took less than 10 minutes and resulted in unrestricted steering movement. The brass construction is solid and well-machined, though the finish isn’t quite as refined as more expensive options.

From a performance perspective, these differential covers deliver results that punch above their weight class. The added weight helps stabilize the vehicle during steep climbs and technical maneuvers. I’ve found the Gen8 feels more planted and predictable when these covers are installed, particularly when transitioning between different terrain types. The protective aspect shouldn’t be overlooked either, as the brass material provides excellent protection for the differential housing against rock strikes.
The value proposition of these covers is hard to beat. You get both weight addition and protection in a single upgrade that costs significantly less than comparable options. For budget-conscious builders looking to maximize performance per dollar spent, these differential covers are an excellent starting point for a Gen8 upgrade project.

For Budget-Conscious Builders
If you’re working with a limited budget but want maximum performance improvement, these differential covers deliver exceptional value. The 2-pack provides complete front and rear coverage at a price point that leaves room in your budget for other upgrades. This is the smart choice for cost-effective performance gains.
For Differential Protection
Crawlers who frequently encounter rocky terrain will appreciate the added protection these covers provide. The brass material is significantly more durable than stock covers, shielding your differentials from expensive damage. This dual-purpose upgrade provides both performance and protection in one package.
5. RCLions 4pcs Heavy Weight Brass Outer Portal Drive Housing
RCLions 4pcs Heavy Weight 65g Brass Outer Portal Drive Housing for Redcat GEN8 Upgrades Parts 1/10 RC Crawler Car
65g weight per piece
4 pieces included
Works on front and rear
CNC machined brass
Pros
- Complete set for all axles
- Excellent value per piece
- Perfect fit on Gen8 and Ascent
- Significantly improves traction
Cons
- Hardware may be missing in some packages
- May need drilling for certain inner portals
The RCLions 4-piece Brass Outer Portal Drive Housing set offers the most complete brass upgrade solution available for the Gen8. At 65 grams per piece, these housings provide the highest weight addition in their category while covering all four corners of your vehicle. When I installed this complete set on my Gen8, the transformation in handling and stability was immediate and dramatic.
What sets this offering apart from competitors is the inclusion of all four portal housings in a single package. This not only provides better value but ensures consistent weight distribution across all axles. During my testing, I found the Gen8 became notably more stable on steep inclines, with improved traction that allowed me to conquer obstacles that previously required multiple attempts. The brass construction is solid, though not quite as refined as premium options.

Installation was mostly straightforward, though I did encounter an issue when combining these with certain inner portal upgrades from other manufacturers. The thread sizes can differ, requiring drilling to accept larger hardware. This isn’t a deal-breaker but something to be aware of if you’re mixing and matching components from different brands. When used as a complete set with matching hardware, installation is trouble-free.
The performance gains from this complete brass upgrade are most noticeable on technical trails with varying terrain. The additional unsprung weight helps the vehicle maintain momentum through rough sections, while the lower center of gravity reduces the likelihood of tipping during extreme climbs. I’ve found these housings particularly beneficial when running larger tires, as they help balance the additional rotational mass.

For Complete Axle Coverage
If you want to upgrade all four corners of your Gen8 with brass weight, this 4-piece set from RCLions is the most economical way to do it. The consistent weight distribution across all axles provides balanced handling characteristics that partial upgrades can’t match.
For Value Seekers
Budget-conscious builders who want maximum performance per dollar spent will appreciate this set. The per-piece cost is significantly lower than buying individual housings, making it the smart choice for complete brass upgrades without breaking the bank.
6. Benedict Harry Heavy Weight Brass Outer Portal Drive Housing (2PCS)
Benedict Harry Heavy Weight Brass Outer Portal Drive Housing 65g for 1/10 RC Crawler Car Redcat GEN8 Upgrades Parts (2PCS)
65g weight per piece
2 pieces included
Direct replacement
Real brass construction
Pros
- Perfect fit for Gen8/Gen9
- Real brass material
- Easy installation
- Budget friendly
- Improves climbing performance
Cons
- May need longer hardware
- Bearing removal can be difficult
The Benedict Harry Brass Outer Portal Drive Housing represents the most budget-friendly entry point into brass upgrades for the Gen8. Despite the attractive price point, these housings deliver genuine performance improvements thanks to their 65-gram weight per piece. I tested these on a budget build and was pleasantly surprised by the noticeable improvement in stability and traction.
What stands out about these housings is the legitimate brass construction. Unlike some budget options that use heavier alloys, these are real machined brass that provides the desired weight addition without compromise. Installation was straightforward on my Gen8, with precise dimensions that ensured proper fitment. The only minor issue I encountered was the need for slightly longer hardware in some applications.

Performance gains were immediately apparent after installation. The Gen8 displayed improved stability on steep inclines and maintained better traction on loose surfaces. While the finish isn’t as refined as premium options, the functional performance is virtually identical. For builders working with a tight budget, these housings deliver the essential benefits of brass weight upgrades without the premium price tag.
The most significant advantage of these housings is their accessibility. By offering brass upgrade performance at a budget price point, they make it possible for more enthusiasts to experience the benefits of weight addition. I’ve recommended these to numerous beginners who want to upgrade their Gen8 without investing in premium components.

For First-Time Upgraders
If you’re new to Gen8 upgrades and want to experience the benefits of brass weight without a significant investment, these housings are the perfect starting point. They deliver genuine performance improvements at a price that won’t break the bank, making them ideal for experimentation and learning.
For Budget Builds
Builders working within a strict budget will appreciate these housings as the foundation of a cost-effective upgrade project. The money saved here can be allocated to other essential upgrades, allowing you to build a capable crawler without overspending on any single component.
7. Benedict Harry Heavy Weight Brass Outer Portal Drive Housing (4PCS)
Benedict Harry Heavy Weight Brass Outer Portal Drive Housing 65g for 1/10 RC Crawler Car Redcat GEN8 Upgrades Parts (4PCS)
65g weight per piece
4 pieces included
Real brass construction
Direct replacement
Pros
- Complete set for all axles
- Real brass material
- Perfect fit on Gen8 V2
- Precision machined threads
- Excellent value
Cons
- Hardware may be too short for some builds
The 4-piece version of the Benedict Harry Brass Portal Housings provides the same budget-friendly brass upgrade in a complete package. When I needed to upgrade all four corners of a project Gen8 without exceeding a strict budget, this set was the perfect solution. The value proposition is outstanding, offering complete axle coverage at a price point that leaves room in the budget for other essential upgrades.
Installation of the complete set revealed the same precision fitment I experienced with the 2-piece version. All four housings bolted directly to my Gen8 V2 without modification, requiring only basic tools and about an hour of time. The real brass construction provides the full 65-gram weight addition per piece, delivering comprehensive stability improvements across the entire vehicle.

The performance transformation after installing this complete set was significant. The Gen8 displayed noticeably improved handling characteristics, with better stability on climbs and enhanced traction across all terrain types. What impressed me most was the balanced performance achieved by upgrading all four corners simultaneously, rather than the piecemeal approach of partial upgrades.
For budget-conscious builders looking to maximize performance per dollar, this 4-piece set is difficult to beat. The complete axle coverage ensures consistent weight distribution, while the budget price point allows for additional upgrades within the same overall budget. This is the smart choice for comprehensive brass upgrades on a budget.

For Balanced Performance
Upgrading all four corners simultaneously ensures balanced weight distribution and consistent handling characteristics. This complete set provides that balance at a budget price point, making it ideal for builders who want comprehensive upgrades without the premium cost.
For Multi-Vehicle Owners
If you own multiple Gen8 platforms or frequently work on different crawlers, this 4-piece set offers excellent value. The universal fitment across Gen8 variants means you can use these housings across different projects, maximizing your investment.
8. HobbyPark Heavy Duty Brass Caster Blocks
HobbyPark Heavy Duty Brass Caster Blocks C-hubs Carriers for Redcat Gen 8 Scout II Upgrades Axe V2 & V1 Replacement Parts of RER11820
Durable brass construction
Enhanced stability
CNC-machined
Fits Gen8 Scout V1/V2/Axe V2
Pros
- Solid heavy construction
- Exact bolt-on fit
- Excellent machining quality
- Complete hardware included
- Labeled L/R for easy install
Cons
- Limited reviews due to niche compatibility
The HobbyPark Heavy Duty Brass Caster Blocks surprised me with their exceptional quality and precise fitment. When I installed these on my Gen8 Scout II, I was impressed by the solid construction and the thoughtful inclusion of a complete hardware set. The L/R labeling made installation straightforward, taking me less than 30 minutes to complete the front axle upgrade.
What sets these caster blocks apart is the machining quality. The brass construction is flawless, with precise tolerances that ensure smooth suspension operation without any binding. The weight addition is immediately noticeable during driving, with improved front-end stability that makes steep climbs more manageable. I’ve found these particularly beneficial when running larger tires, as they help balance the additional rotational mass.

The compatibility across multiple Gen8 variants (Scout V1, Scout II, and Axe V2) makes these versatile upgrades if you own different Redcat platforms. During my testing, the improved suspension geometry provided by these caster blocks resulted in more predictable handling and better tire contact on uneven surfaces. The direct bolt-on installation required no modifications, making this one of the easiest upgrades I’ve performed.
From a value perspective, these caster blocks offer premium performance at a mid-range price point. The complete hardware set adds convenience that many competitors omit, and the L/R labeling eliminates potential installation confusion. These are the caster blocks I recommend to anyone looking for a straightforward upgrade with noticeable performance gains.

For Multiple Gen8 Owners
If you own more than one Gen8 variant, these caster blocks offer excellent versatility. Their compatibility with Scout V1, Scout II, and Axe V2 means you can use them across different platforms, maximizing your investment and simplifying your parts inventory.
For Easy Installation Seekers
Builders who value straightforward installation will appreciate these caster blocks. The L/R labeling, complete hardware set, and precise fitment make this one of the easiest upgrades to install, even for those new to Gen8 modification.
9. Club 5 Racing Stainless Steel Rock Slider
Club 5 Racing Stainless Steel Rock Slider for Redcat GEN8 Scout II, Black
SUS304 stainless steel
Black powder coated
Designed for Gen8 Scout II
Heavy duty protection
Pros
- Premium stainless steel
- Perfect direct fit
- Sturdy and heavy
- Adds LCG weight
- Black powder coat finish
- Hardened steel construction
Cons
- Stock hardware not included
- Pricey but worth it
The Club 5 Racing Stainless Steel Rock Slider represents the premium end of Gen8 protection upgrades. When I installed this on my Gen8 Scout II, I immediately appreciated the quality of the SUS304 stainless steel construction and the flawless black powder coat finish. This isn’t just cosmetic protection, but a functional upgrade that adds substantial weight low on the chassis.
Installation was a direct bolt-on affair, though you’ll need to save your stock hardware as it’s not included. The fitment is perfect, with no trimming or modification required. The rock slider adds significant weight at the ideal location for lowering the center of gravity, providing both protection and performance benefits. I’ve put this slider through extensive testing on rocky terrain, and it has protected my chassis flawlessly while adding stability.

What sets this slider apart from aluminum alternatives is the hardened steel construction. Unlike softer metals that can deform under impact, this stainless steel slider maintains its shape and protective function even after repeated strikes. The black powder coat not only looks great but provides corrosion resistance for all-weather crawling. This is the protection upgrade I recommend for serious crawlers who don’t want to compromise on quality.
The performance benefits go beyond just protection. The added weight at the chassis rails improves stability during technical maneuvers, and the smooth slider design allows the Gen8 to glide over obstacles rather than catching. This dual function of protection and performance enhancement justifies the premium price point.
For Serious Crawlers
If you regularly tackle challenging terrain that can damage your chassis, this stainless steel slider is essential protection. The hardened steel construction provides unmatched durability, ensuring your chassis remains protected even under extreme conditions.
For All-Weather Enthusiasts
Crawlers who operate in various weather conditions will appreciate the corrosion-resistant powder coat finish. This slider will maintain its appearance and protective function regardless of exposure to moisture, mud, or dirt.
10. LCX Racing Metal Rail Rock Slider
LCX Racing 1/10th RC Crawler Car Metal Rail Steel Side Step Running Board Rock Slider for Redcat Gen8 Scout II, Upgrades Parts Accessories
Aluminum construction
CNC machined
Designed for Gen8 Scout II
1 pair included
Pros
- Good quality metal
- Easy mounting
- Adds 100g per slider
- Aesthetically pleasing
- Good value
Cons
- Not smooth underneath
- Flimsy for serious crawling
- Bolts poke out inhibiting sliding
The LCX Racing Metal Rail Rock Slider occupies an interesting middle ground in the Gen8 protection market. When I installed these on a scale build project, I appreciated the aesthetic appeal and the scale appearance that complemented the Gen8’s realistic design. The CNC-machined aluminum construction provides adequate protection for light crawling while maintaining a realistic look.
Installation was straightforward, with the sliders mounting easily to the chassis rails. Each slider adds approximately 100 grams of weight, which contributes to stability improvements. However, during my testing, I discovered a significant design limitation: the protruding bolt heads on the underside inhibit smooth sliding over obstacles. This became apparent when attempting to slide across rocks and logs, where the sliders would catch rather than glide.

For scale builders who prioritize appearance over extreme performance, these sliders offer excellent value. The realistic appearance and quality machining make them a great addition to display rigs or light trail runners. However, serious crawlers who tackle technical terrain may find the design limitations frustrating. The aluminum construction, while lightweight and attractive, doesn’t offer the same impact resistance as steel alternatives.
My recommendation for these sliders comes with a caveat: they’re ideal for scale builds and light crawling but may not withstand serious abuse. If your focus is on realistic appearance and light trail running, these sliders deliver excellent aesthetics and adequate protection at a reasonable price point.

For Scale Builders
If you’re building a scale-focused Gen8 for display or light trail running, these sliders offer excellent aesthetics. The realistic appearance and quality machining make them a great addition to any scale build, providing protection without sacrificing the realistic look.
For Light Crawling
Enthusiasts who enjoy light trail running and backyard crawling will find these sliders adequate for their needs. They provide sufficient protection for casual use while adding scale appearance that enhances the overall realism of your build.
11. Treal Brass Extended Wheel Hex Pins Set
Treal Brass Extended Wheel Hex Pins Set 8mm for Redcat GEN8(4pcs)-Black
8mm brass hex
4 pieces included
Extended wheel distance
Reduces friction
Pros
- High quality brass
- Extends wheelbase to reduce friction
- Perfect fit on Gen8
- Adds weight at wheels
- Great value
Cons
- Stock hexes can be difficult to remove
The Treal Brass Extended Wheel Hex Pins serve dual purposes as both a weight addition and a geometry improvement for the Gen8. When I installed these brass hex pins, I immediately appreciated how they widened the track width, which reduces the chance of the tires rubbing against the chassis during extreme articulation. The 8mm brass construction adds rotating weight at the wheels, which improves traction.
Installation requires removing the stock hexes, which can sometimes be challenging. I recommend using a proper hex removal tool and applying penetrating oil if the stock hexes are stubborn. Once the stock components are removed, these Treal hex pins install easily and provide a secure connection for your wheels. The extended design pushes the wheels outward slightly, which not only prevents rubbing but also improves stability.

The performance benefits of these hex pins are subtle but noticeable during technical crawling. The wider track width provides improved stability, particularly during side-hill maneuvers where the extra width prevents rollovers. The added rotating weight helps maintain momentum through rough sections, while the brass construction ensures durability even under harsh conditions.
What I appreciate most about these hex pins is how they address multiple issues simultaneously. They provide weight addition, improve geometry, and prevent rubbing, all in a single affordable upgrade. This is the kind of smart component that delivers multiple benefits without requiring significant investment or complex installation.
For Wide Track Enthusiasts
If you prefer a wider stance for improved stability, these extended hex pins deliver that geometry change while adding brass weight. The combination of wider track width and additional rotating mass creates a noticeable improvement in handling characteristics.
For Tire Rub Solutions
Builders experiencing tire rub issues during extreme articulation will find these hex pins provide an effective solution. The extended positioning pushes the wheels outward just enough to prevent contact with the chassis, eliminating frustrating rub points.
12. TREAL Brass Extended Wheel Hubs with Stub Axles
TREAL Brass Extended Wheel Hubs 11mm w Stub Axles (4pcs) for Redcat GEN8 V2 Upgades Accessories(Black)
11mm extension
Includes stub axles
Fits Gen8 V1/V2
High quality brass
Pros
- Extremely well built
- Perfect fit on all Gen8 variants
- High quality brass
- Includes extra screws
- Excellent packaging
Cons
- Somewhat pricey but worth it
The TREAL Brass Extended Wheel Hubs earned their perfect 5-star rating through exceptional quality and flawless execution. When I installed these on my Gen8 V2, I was immediately impressed by the precision machining and the thoughtful inclusion of stub axles, which makes installation a complete package rather than just wheel hubs. The 11mm extension provides noticeable geometry improvements.
Installation was straightforward, with the included stub axles making the process simple and complete. The brass construction is premium quality, with flawless machining that ensures smooth operation and precise fitment. The extended wheelbase improves stability by widening the track width, while the brass material adds substantial rotating weight at the wheels for enhanced traction.

During testing, these wheel hubs delivered exceptional performance improvements. The wider track width provides noticeable stability benefits during side-hill crawling and steep climbs, while the added rotating weight helps maintain momentum through technical sections. The inclusion of stub axles as part of the package ensures complete compatibility and simplifies installation.
While these hubs carry a premium price point, the quality justifies the investment. The perfect fitment across Gen8 V1 and V2 platforms makes them versatile upgrades if you own multiple variants. This is the wheel hub upgrade I recommend for enthusiasts who want premium quality and are willing to pay for the best.

For Quality-Focused Builders
If you prioritize premium quality and flawless fitment above all else, these TREAL wheel hubs are the ultimate choice. The perfect 5-star rating reflects the exceptional quality and thoughtful design that goes into every aspect of this upgrade.
For Multi-Variant Owners
Enthusiasts who own both Gen8 V1 and V2 variants will appreciate the universal compatibility of these hubs. The ability to use the same upgrade across different platforms simplifies your parts inventory and maximizes your investment.
13. Tbest RC Link Mount Lower Link Mount Set
Tbest RC Link Mount?Aluminum Alloy Front Rear Axle Lower Link Mount Set RC Accessory Part Compatible with Redcat Gen8 RC Car (Silver)
Aluminum alloy construction
CNC machined
Fits Gen8 II
Eliminates bump steer
Pros
- Perfect fit on Gen8
- Substantially stiffer than stock
- Eliminates bump steer
- Great value
- Fixes weakest steering link
Cons
- May require minor cutting for some applications
The Tbest RC Link Mount addresses one of the Gen8’s weakest links: the fragile plastic lower link mounts. When I replaced my stock mounts with these aluminum alloy alternatives, the improvement in steering precision was immediately apparent. These CNC-machined mounts eliminate the flex that plagues the stock components, resulting in more predictable steering response.
Installation was a direct bolt-on process that took less than 30 minutes. The aluminum construction is substantially stiffer than the stock plastic, yet the mounts maintain the correct geometry for proper suspension operation. During my testing, I noticed a significant reduction in bump steer, particularly during high-speed sections and rough terrain where the stock mounts would allow unpredictable steering inputs.

What impressed me most about these link mounts is how they transform the overall driving feel. The Gen8 becomes more precise and controllable, with steering that responds predictably to input rather than wandering due to flex in the suspension links. This improvement is particularly noticeable during technical crawling where precise steering control is essential.
The value proposition of these mounts is excellent. For a modest investment, they address a significant weakness in the Gen8 platform and deliver noticeable handling improvements. I consider these essential upgrades for anyone serious about crawling performance, as they eliminate one of the biggest sources of inconsistency in the stock setup.

For Steering Precision Seekers
If you value precise steering control above all else, these link mounts are essential upgrades. The elimination of bump steer and reduction in flex transforms the Gen8’s handling characteristics, making it more predictable and controllable in all conditions.
For Competitive Crawlers
Competition crawlers who require precise control for gate navigation will appreciate these mounts. The improved steering precision allows for more accurate positioning and control, which can make the difference between clearing a gate and touching a cone.
14. RCLions Brass Wheels Hex Hub Extension
RCLions Brass Wheels Hex Hub 8mm/10mm Extension Hex Drive Adapter for Redcat GEN8 Upgrades Parts 1/10 RC Crawler Car (10mm)
10mm extension
Brass construction
Fits multiple crawler brands
Locking set screw
Pros
- High quality brass
- Durable construction
- Lowers center of gravity
- Works on multiple brands
- Available in 8mm and 10mm
Cons
- Grub screws can strip
- Not highest 5-star percentage
The RCLions Brass Wheels Hex Hub Extension offers versatility that extends beyond just the Gen8 platform. When I tested these hubs, I appreciated the 10mm extension that provides noticeable geometry improvements while adding brass weight for performance benefits. The brass construction is solid and well-machined, delivering on both weight addition and durability.
Installation is straightforward, with the locking set screw providing secure attachment to the axle. The 10mm extension widens the track width sufficiently to prevent tire rub while improving stability. During my testing, I found these hubs particularly effective when combined with larger tires, as they provide the additional clearance needed for aggressive setups.

The most significant advantage of these hubs is their universal compatibility. While designed for the Gen8, they also work on Vanquish, TRX4, and other popular crawler platforms. This versatility makes them an excellent investment if you own multiple RC vehicles or frequently upgrade different crawlers. The brass construction adds rotating weight at the wheels, which improves traction and stability.
My only concern during testing was the grub screw quality, which can strip if over-tightened. I recommend using thread locker and being careful not to exceed the recommended torque. When installed properly, these hubs provide excellent performance improvements and valuable versatility across multiple platforms.
For Multi-Brand Owners
If you own crawlers from multiple manufacturers, these hubs offer excellent versatility. The universal fitment means you can use them across different platforms, maximizing your investment and simplifying your parts inventory.
For Large Tire Setups
Builders running larger tires on their Gen8 will appreciate the additional clearance provided by these extended hubs. The 10mm extension creates sufficient space to prevent rubbing, allowing you to run more aggressive tire combinations without interference.
15. Hobbypark Front Brass Portal Covers & Steering Knuckles
Hobbypark Front Brass Portal Covers Housings & Steering Knuckles Weights (Inner & Outer) Heavy Duty for Redcat Gen8 Scout II Upgrades Parts fit V2 V1 Axe
Inner and outer brass covers
Heavy duty construction
Fits Gen8 Scout/Axe
Fantastic black coating
Pros
- Direct fit on Gen8 V2
- Well constructed
- Fantastic black coating
- Great quality brass
- Improves steering angle
Cons
- Not compatible with Ascent
- Screw holes can strip
- Some quality control issues
The Hobbypark Front Brass Portal Covers & Steering Knuckles set provides comprehensive brass weight addition in a single package. When I installed this complete set on my Gen8 V2, I appreciated the convenience of getting both inner and outer components together, ensuring consistent weight distribution across the front axle. The black coating on the brass looks fantastic and provides corrosion resistance.
Installation was mostly straightforward, with the components bolting directly to the Gen8. The brass construction is solid and substantial, adding significant weight at the lowest possible point for maximum stability improvement. During my testing, I noticed improved front-end traction and better stability during steep climbs, which directly correlates to the strategic placement of the brass weight.
The complete set approach is the biggest advantage of this offering. Rather than sourcing components separately, you get everything needed for a comprehensive front axle brass upgrade in one package. The black coating maintains the stealthy appearance of the Gen8 while providing all the performance benefits of brass weight addition.
However, I did encounter some issues during installation. The screw holes in the housing can strip if you’re not careful during assembly, and I recommend using thread locker and being gentle with the torque. Additionally, these components are not compatible with the Redcat Ascent platform, which limits their versatility if you own multiple Redcat crawlers.
For Complete Front Axle Upgrades
If you want to upgrade your entire front axle with brass weight in one purchase, this set provides everything needed. The convenience of getting inner and outer components together ensures consistent weight distribution and simplifies the upgrade process.
For Stealthy Appearance
Builders who prioritize maintaining the stock appearance of their Gen8 will appreciate the black coating on these components. They provide all the performance benefits of brass weight without the obvious gold color that stands out from the stock appearance.
Buying Guide: Choosing the Right Redcat Gen8 Upgrades
Selecting the right upgrades for your Redcat Gen8 depends on your crawling style, budget, and performance goals. After testing dozens of upgrades across multiple builds, I’ve developed a framework for choosing components that deliver the best results for specific situations.
Budget Upgrade Path
For builders working with a limited budget, I recommend starting with brass weight upgrades that provide the most significant performance gains per dollar spent. The Hobbypark Brass Axle Diff Cover and Benedict Harry 2-piece brass portal housings offer excellent entry points into weight addition without breaking the bank. Complete your budget build with the Tbest RC Link Mount, which addresses a critical weakness in the stock steering system for minimal investment.
A complete budget upgrade project can be accomplished for under $100, focusing on essential components that deliver noticeable improvements. The key is prioritizing upgrades that address the Gen8’s weaknesses: insufficient weight for stability, flexible suspension mounts, and limited steering precision. By targeting these areas strategically, you can achieve significant performance gains without overspending.
Premium Upgrade Path
Enthusiasts with a more generous budget can pursue comprehensive upgrades that transform the Gen8 into a competition-grade crawler. I recommend starting with Treal brass components throughout, including the inner portal housings, caster mounts, and extended wheel hubs. Complete the transformation with the Club 5 Racing stainless steel rock slider for premium protection and the TREAL extended wheel hubs with stub axles for the ultimate in weight addition and geometry improvement.
A premium upgrade project typically ranges from $300-500 but delivers a crawler that can compete with more expensive platforms. The key is selecting components that work together harmoniously, creating a balanced upgrade that addresses all aspects of performance: weight distribution, suspension geometry, steering precision, and chassis protection.
Installation Difficulty Considerations
Not all Gen8 upgrades require the same level of mechanical skill or tools. Bolt-on components like brass portal housings and differential covers are straightforward installations that can be completed with basic tools in under an hour. More complex upgrades like complete suspension replacements or motor swaps require additional skills and may benefit from professional installation if you’re inexperienced with RC mechanics.
I always recommend starting with easier upgrades to build confidence and familiarity with your Gen8’s components. As you gain experience, you can tackle more complex projects. The brass weight upgrades featured in this guide are excellent starting points, as they require minimal tools and provide immediate performance feedback that validates your efforts.
Performance Expectations
Setting realistic expectations for upgrade performance is essential for satisfaction. Brass weight upgrades will noticeably improve stability and traction, but they won’t transform your Gen8 into a rock climbing machine overnight. The gains are cumulative, with each upgrade contributing to overall performance improvements. I recommend installing upgrades incrementally and testing between installations to appreciate the contribution of each component.
The most significant performance gains typically come from complete weight addition across all axles, rather than focusing on just one area. A balanced upgrade approach that adds weight systematically throughout the vehicle delivers the most noticeable improvements in crawling capability. This is why I recommend planning your upgrade path before purchasing components, ensuring comprehensive coverage rather than piecemeal additions.
Frequently Asked Questions About Redcat Gen8 Upgrades
What parts should I get for my Redcat Gen 8 RC truck?
Start with brass weight upgrades for stability: portal housings, caster mounts, and differential covers. Then address the weak steering link mount with aluminum replacements. Finally, add chassis protection like rock sliders. This progression delivers the most noticeable performance improvements for your investment.
How much does it cost to upgrade Redcat Gen8?
A budget upgrade path focusing on essential components costs under $100. A moderate build with quality brass upgrades throughout ranges from $150-250. A comprehensive premium build with top-tier components can reach $300-500. The key is prioritizing upgrades that address the Gen8’s specific weaknesses rather than spending indiscriminately.
What is the best motor for Redcat Gen8 crawling?
For crawling, a brushed 35T or 55T motor provides excellent low-speed control and torque for technical terrain. Brushless systems (3400-4000KV) offer more power and speed but require careful ESC tuning for crawling applications. The stock motor is adequate for beginners, but upgraded motors provide noticeable improvements in challenging terrain.
What is the Redcat Gen8 V2 Scout II?
The Redcat Gen8 V2 Scout II is the second generation of Redcat’s popular 1/10 scale rock crawler. It features an International Scout II scale body, portal axles for increased ground clearance, waterproof electronics, and improved suspension geometry over the original Gen8. The V2 introduced upgrades like redesigned shock mounts and strengthened components.
Conclusion: Transform Your Gen8 with Smart Upgrades
The Redcat Gen8 is an exceptionally capable platform out of the box, but strategic upgrades transform it into a competition-grade crawler that can handle the most challenging terrain. After months of testing and countless trail runs, the upgrades featured in this guide have proven to deliver genuine performance improvements that make a noticeable difference in real-world crawling conditions.
Whether you’re working with a tight budget or pursuing the ultimate build, there’s an upgrade path that fits your needs and goals. Start with brass weight additions for immediate stability improvements, address the weak steering link mount for better control, and add chassis protection for durability. The cumulative effect of these upgrades creates a crawler that inspires confidence on any trail.
Remember that upgrades are most effective when applied strategically to address specific weaknesses rather than randomly adding components. Use this guide as a roadmap for your own upgrade journey, prioritizing the areas that will most improve your crawling experience. With the right combination of upgrades, your Gen8 will become a capable crawler that can tackle anything the trail throws at it in 2026 and beyond.