Overview
The Traxxas HD Rear Axle (left & right) TRX8063 is an essential upgrade component for serious RC crawler and trail enthusiasts across the UK who demand maximum durability and performance from their Traxxas TRX-4 models. This heavy-duty rear axle assembly represents Traxxas's commitment to engineering excellence, providing the robust foundation that trail-bashing RC cars need to handle demanding terrain without compromise. Whether you're tackling rocky hillsides, navigating through mud, or pushing your RC vehicle to its limits on technical trails, this transmission component is engineered to absorb punishment and keep your model running reliably.
Designed as a direct replacement or upgrade for standard rear axle assemblies on compatible TRX-4 models, the TRX8063 delivers the kind of heavy-duty construction that separates casual RC hobbyists from serious competitors and weekend bashers. This is a transmission tune-up option that elevates your TRX-4's capability, allowing you to confidently tackle more aggressive driving without fear of drivetrain failure. The component comes as a matched pair (left and right), ensuring balanced performance and eliminating the need to source components separately—a thoughtful design choice that saves time and money for UK RC enthusiasts.
If you own a Traxxas TRX-4 Electric All-Terrain Crawler, whether it's a Chevrolet K10 Cheyenne High Trail Edition, Ford F-150 Ranger XLT, Nissan Pathfinder, Defender, or any of the other variants in the extensive TRX-4 lineup, this rear axle assembly is a proven performance upgrade that has earned recognition among the RC community. The installation of the TRX8063 requires the complementary #8065 rear portal drive input gear, making this a complete drivetrain solution when both components are properly assembled together.
Key Features
- Heavy-Duty Construction — Built to withstand the extreme stresses of trail running and aggressive off-road driving, this rear axle assembly uses robust engineering to minimise flex and ensure consistent performance across rough terrain and challenging driving conditions.
- Left and Right Paired Assembly — The TRX8063 arrives as a complete left and right axle set, eliminating the need to purchase components individually and ensuring perfect matched performance on both sides of your RC crawler.
- Transmission Tune-Up Component — Classified as a transmission upgrade, this axle assembly allows you to optimise your TRX-4's drivetrain for improved power delivery and durability without replacing the entire chassis.
- Compatible with Extensive TRX-4 Range — Works with the full family of Traxxas TRX-4 models including the 1979 Chevy Blazer, Nissan Pathfinder SE-V6, Chevrolet K10 Cheyenne, Ford F-150 Ranger XLT, 1972 K5 Blazer, 2021 Ford Bronco, and Defender variants in all colour options available.
- Requires TRX8065 Portal Drive Input Gear — Designed to work seamlessly with the #8065 rear portal drive input gear, this pairing creates a complete heavy-duty rear axle system that maximises drivetrain efficiency and longevity.
- Authorised Traxxas Component — As an official Traxxas OEM part, you can trust that this component meets the manufacturer's exacting standards for quality, fit, and performance across all compatible models.
Technical Performance
The TRX8063 rear axle assembly represents the pinnacle of Traxxas's engineering approach to transmission components for their 1/10 scale TRX-4 crawler platform. This heavy-duty axle is manufactured to precise tolerances, utilising materials and construction techniques proven through extensive real-world testing on some of the most demanding terrain that RC enthusiasts can find. The axle assembly is engineered to maximise rigidity whilst minimising weight, a balance that separates premium components from basic alternatives. When paired with the complementary #8065 rear portal drive input gear, the TRX8063 creates a transmission system that delivers superior power transfer efficiency from the main drive system to the wheels, translating into more responsive handling and better traction on technical terrain. The heavy-duty design is particularly valuable for UK RC enthusiasts who frequently drive their models through wet conditions, mud, and challenging natural terrain where standard components might struggle. The rear portal configuration, when combined with the input gear, provides the mechanical advantage and durability necessary for sustained high-torque applications. This is the kind of engineering detail that separates a casual RC car UK from a serious trail crawler, and it's why the TRX8063 remains a popular choice among competitors and dedicated hobbyists.
What's in the Box
- Rear axle assembly (left)
- Rear axle assembly (right)
What You Need to Complete
- Traxxas TRX8065 rear portal drive input gear (requires #8065 rear portal drive input gear) — This is the essential companion component that must be installed in conjunction with the TRX8063 to create a complete, functioning rear axle system.
- Compatible TRX-4 model — Any TRX-4 variant from the extensive Traxxas lineup, including all High Trail Edition models, RTR models, and chassis kits.
Frequently Asked Questions
- Which TRX-4 models are compatible with the TRX8063 rear axle? — The TRX8063 is designed to work with the entire Traxxas TRX-4 family, including the 1979 Chevy Blazer, Nissan Pathfinder SE-V6, Chevrolet K10 Cheyenne High Trail Edition (available in Red, Black, Metallic Silver, and Metallic Blue), Ford F-150 Ranger XLT High Trail Edition (available in Blue, Black, Brown), 1972 Chevrolet K5 Blazer High Trail Edition (Red or Blue), 2021 Ford Bronco (Red, White, Orange, Black), Defender 4WD RTR (Green, Sand, Red, Silver), TRX-4 Sport variants, and the unassembled TRX-4 chassis kit. This makes it one of the most versatile rear axle upgrades in the Traxxas range.
- Do I need any other parts to install the TRX8063? — Yes, the TRX8063 rear axle requires the Traxxas TRX8065 rear portal drive input gear to function properly. These two components work together as a complete system, so you'll need to source both if you're upgrading an existing model.
- Is this suitable for beginners or only for experienced RC builders? — While installation of drivetrain components like the TRX8063 requires some mechanical knowledge and proper tools, anyone with basic RC maintenance experience should be able to handle the installation. However, if you're new to RC modifications, we recommend consulting the official Traxxas installation guide or seeking assistance from experienced hobbyists at your local RC club or from RC Model Shop staff.
- What makes this a heavy-duty upgrade compared to standard axles? — The TRX8063 is engineered with more robust materials and construction techniques than standard components, allowing it to handle greater torque loads and resist damage from impacts and extreme driving conditions. This makes it ideal for serious trail running, rock crawling, and aggressive off-road driving where standard components might fail.
- Can I use the TRX8063 on wet or muddy terrain? — Absolutely. In fact, heavy-duty axle assemblies like the TRX8063 are specifically designed for the kind of demanding conditions that UK RC enthusiasts frequently encounter, including wet ground, mud, and challenging natural terrain. The durable construction means it can handle these conditions reliably without premature wear or failure.
- What is the difference between the TRX8063 and standard Traxxas rear axles? — The TRX8063 is classified as a heavy-duty upgrade component, meaning it features more robust engineering, superior material quality, and enhanced durability compared to standard axle assemblies. This translates into better performance, longer lifespan, and greater resistance to damage during aggressive driving.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas HD Rear axle (left & right) TRX8063 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
- Brand: Traxxas
- Model Number: TRX8063
- Product Type: Rear Axle Assembly (Heavy-Duty)
- Tune-Up Type: Transmission
- Configuration: Left and Right (Pair)
- Compatibility: TRX-4 models including 1979 Chevy Blazer, Nissan Pathfinder SE-V6, Chevrolet K10 Cheyenne High Trail Edition, Ford F-150 Ranger XLT High Trail Edition, 1972 Chevrolet K5 Blazer High Trail Edition, 2021 Ford Bronco, TRX-4 Defender, TRX-4 Sport, and TRX-4 Chassis Kit variants
- Required Companion Component: TRX8065 rear portal drive input gear
- Construction: Heavy-duty machined assembly
- Scale: 1/10
- What's Included: Rear axle assembly (left) and rear axle assembly (right)
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