Overview
The Traxxas Portal drive axle mount, Rear (left & right) TRX8256 is an essential chassis spare part designed for owners of Traxxas TRX-4 scale RC crawlers and trail vehicles. Whether you're a dedicated RC enthusiast in the UK looking to maintain your high-performance crawler or a weekend basher who needs reliable replacement parts, this OEM Traxxas component ensures your rear axle assembly stays perfectly aligned and functioning at its best. The portal drive axle mounts are crucial structural elements that support and position your vehicle's rear portal gearboxes and drivetrain, making them vital for maintaining the legendary crawling ability and durability that Traxxas is recognised for.
Portal drive axles represent one of the most advanced features in modern RC crawler design, allowing for increased ground clearance whilst maintaining a low centre of gravity — a combination that makes TRX-4 vehicles capable of tackling some of the most challenging terrain. When these mounts become worn, damaged, or simply need replacing after years of intensive off-road use, having access to genuine Traxxas parts ensures you can restore your vehicle to factory specifications quickly and easily. This genuine part is manufactured to exact OEM tolerances and materials, guaranteeing perfect fitment and reliable performance every single time you take your RC car out to explore.
As an authorised Traxxas retailer, RC Model Shop stocks this essential spare part to keep your crawler running smoothly. Whether you're upgrading your TRX-4 Defender, Ford F-150 Ranger XLT High Trail Edition, Chevrolet K10 Cheyenne, 1972 Chevrolet K5 Blazer, 2021 Ford Bronco, Nissan Pathfinder, or any compatible TRX-4 variant, this rear portal drive axle mount delivers the precision and quality you expect from Traxxas genuine parts.
Key Features
- Genuine Traxxas OEM Component — This is an official Traxxas factory part manufactured to exact specifications, ensuring perfect compatibility with your TRX-4 crawler and guaranteed fitment without any modifications or adjustments needed.
- Left and Right Pair Included — The package contains both the left and right rear portal drive axle mounts, allowing you to service the complete rear axle assembly in one purchase and maintain perfect balance and symmetry.
- Critical Structural Component — These mounts form an essential part of your vehicle's chassis structure, supporting the portal gearboxes and maintaining proper axle geometry for optimal crawling performance and terrain capability.
- Proven Traxxas Engineering — Designed and manufactured by Traxxas, the company recognised worldwide for innovative RC crawler technology and uncompromising build quality that professionals and enthusiasts trust.
- Universal TRX-4 Compatibility — Compatible with numerous TRX-4 models including the Defender, Chevrolet K10 Cheyenne High Trail Edition in multiple colours, Ford F-150 Ranger XLT High Trail Edition, K5 Blazer, 1979 Chevy Blazer, 2021 Ford Bronco, Nissan Pathfinder, and TRX-4 Sport variants.
- Replacement and Upgrade Ready — Whether you're performing routine maintenance on your existing TRX-4, repairing damage from aggressive trail use, or building a complete custom crawler, this part provides the foundation for reliable performance.
Technical Performance
The Traxxas TRX8256 portal drive axle mounts are precision-engineered components manufactured from durable materials selected specifically to withstand the extreme forces generated during high-performance RC crawling. Portal drive technology in RC vehicles allows the axles to be mounted higher up in the chassis whilst the gearboxes sit at a lower position, creating additional ground clearance without raising the vehicle's centre of gravity — a critical advantage when negotiating obstacles and maintaining stability. These mounts must maintain precise geometric alignment to ensure that the portal gearboxes function smoothly, gear mesh remains optimal, and the vehicle tracks straight without binding or excessive friction. Traxxas engineers have designed these mounts to be rigid enough to maintain this critical alignment under the intense twisting, bending, and impact forces that occur during aggressive off-road crawling. The material composition and construction method ensure consistent performance across temperature ranges and after extended use, making these parts suitable for both casual weekend trail runs and more demanding competitive crawling events. When paired with the left and right set, they restore your vehicle's rear axle assembly to factory specifications, ensuring that your TRX-4 maintains the legendary capability and reliability that makes Traxxas crawlers the choice of enthusiasts throughout the UK and worldwide.
What's in the Box
- Rear portal drive axle mount (left)
- Rear portal drive axle mount (right)
Frequently Asked Questions
- Which TRX-4 models are compatible with the TRX8256 portal drive axle mounts? — This part is compatible with a comprehensive range of TRX-4 vehicles including the Traxxas TRX-4 Defender in red, silver, sand, and green, Chevrolet K10 Cheyenne High Trail Edition in red, metallic blue, black, and metallic copper, Ford F-150 Ranger XLT High Trail Edition in brown, blue, and black, 1972 Chevrolet K5 Blazer High Trail Edition in blue and red, 1979 Chevy Blazer in black and red, TRX-4 Sport variants including high-trail editions, 2021 Ford Bronco in red, white, orange, and black, Nissan Pathfinder SE-V6 in red and silver, and TRX-4 unassembled chassis kits. If you're unsure whether your specific model is compatible, we recommend checking your vehicle's manual or contacting our expert team at RC Model Shop.
- Why would I need to replace my portal drive axle mounts? — Portal drive axle mounts can become worn, cracked, or damaged through extended use, particularly if your crawler experiences significant impacts or is used in very demanding terrain. Additionally, if you've been in a collision or have experienced an accident, these mounts may become misaligned or bent, requiring replacement to restore proper axle geometry and crawling performance. Having replacement mounts available means you can quickly get your vehicle back into action rather than waiting weeks for repair.
- Are these genuine Traxxas parts or aftermarket replacements? — These are genuine, original equipment manufacturer (OEM) Traxxas parts, manufactured to exact factory specifications. Genuine Traxxas parts ensure perfect fitment, reliable performance, and maintain the integrity of your vehicle's engineering and warranty coverage where applicable.
- Is this a difficult part to install on my TRX-4? — Installation difficulty depends on your mechanical experience and familiarity with RC vehicle assembly. The TRX8256 mounts are core structural components that require removal of the rear axle assembly and careful attention to proper orientation and bolt torque specifications. We recommend consulting your vehicle's assembly manual or seeking guidance from experienced RC technicians if you're not familiar with TRX-4 chassis work. Alternatively, our team at RC Model Shop can provide advice and support to help you through the installation process.
- Can I use just one mount or do I need both? — The TRX8256 package includes both left and right mounts because they work together as a pair to maintain proper axle geometry and support. For optimal performance and reliability, both mounts should be installed together. Using only one new mount with an older one can result in misalignment and uneven wear patterns.
- What is the difference between portal drive and traditional axle designs in RC crawlers? — Portal drive technology positions the gearboxes lower than the axle line, allowing the axles themselves to be mounted higher in the chassis. This creates significantly more ground clearance whilst keeping the vehicle's centre of gravity low, which is crucial for obstacle climbing and stability. Traditional designs mount the gearbox inline with the axle, providing less clearance. Portal drives are found on high-end crawlers like the TRX-4 because they dramatically improve performance on challenging terrain.
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 Portal drive axle mount, Rear (left & right) TRX8256 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: TRX8256
- Product type: Rear portal drive axle mounts
- Quantity: Left and right pair (2 pieces)
- Part category: Chassis spares
- EAN: 0020334825605
- Compatible vehicles: Traxxas TRX-4 series crawlers including TRX92056-4 Chevrolet K10 Cheyenne High Trail Edition, TRX92046-4 Ford F-150 Ranger XLT High Trail Edition, TRX92086-4 1972 Chevrolet K5 Blazer High Trail Edition, TRX82276-4 1979 Chevy Blazer, TRX82216-4 TRX-4 Unassembled Chassis Kit, TRX110056-4 Nissan Pathfinder SE-V6, TRX82256-4 TRX-4 Defender, TRX82234-4 TRX-4 Sport, TRX82224-4 TRX-4 Sport, TRX82044-4 TRX-4 Sport High Trail Edition, and TRX88296-4 TRX-6 models
- Installation location: Rear axle assembly
- OEM component: Yes, genuine Traxxas original equipment
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
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- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
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- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
