Overview
The Fastrax TRX-4 Aluminium Front/Rear Body Post Mount (FTTX324BK) is an essential chassis upgrade for anyone running a Traxxas TRX-4 crawler. Whether you're a dedicated RC crawler enthusiast, a weekend basher, or someone looking to enhance the performance and longevity of your TRX-4, this precision-engineered body post mount delivers the rigidity and durability you need for serious off-road adventure. Built from high-quality aluminium, this component replaces the standard plastic body posts with a lightweight yet incredibly stiff alternative that maintains perfect body alignment during the most demanding trail runs.
If you own any variant of the Traxxas TRX-4 — whether it's the Chevrolet K10 Cheyenne High Trail Edition, the Ford F-150 Ranger XLT, the 1972 Chevrolet K5 Blazer High Trail Edition, the 1979 Chevy Blazer, the Nissan Pathfinder SE-V6, the 2021 Ford Bronco, or the Defender 4WD — this upgrade is compatible with your model. The TRX-4 has earned its reputation as one of the finest scale crawlers available in the UK RC market, and upgrading to aluminium body post mounts is one of the most impactful modifications you can make to improve chassis stiffness and vehicle response.
Fastrax is renowned for producing high-quality aftermarket upgrade parts that enhance performance and durability without breaking the bank. This body post mount exemplifies their commitment to quality engineering, offering a practical solution to one of the most common wear points on any crawler. Whether you're tackling rocky terrain, navigating tight technical sections, or simply want your TRX-4 to handle more predictably, the aluminium construction provides the structural integrity that modern RC crawling demands. Order your Fastrax TRX-4 Aluminium Front/Rear Body Post Mount today and experience the difference that precision engineering makes to your crawler's performance.
Key Features
- Aluminium Construction — This body post mount is machined from high-grade aluminium alloy, which provides significantly greater stiffness than the standard plastic posts whilst remaining lightweight. The increased rigidity ensures that your TRX-4's body stays perfectly aligned during aggressive off-road manoeuvres, improving overall handling predictability and durability on technical terrain.
- Front and Rear Compatibility — This is a universal post mount that works on both the front and rear of your TRX-4, making it an efficient upgrade option. You can upgrade one location at a time or go all-in and replace all posts for maximum chassis stiffness throughout your entire vehicle.
- Drop-In Replacement Design — Engineered to be a direct replacement for the OEM plastic posts, installation is straightforward with no modifications required to your chassis. The precision engineering ensures a perfect fit every time, allowing you to complete the upgrade in minutes without any complications.
- Enhanced Durability — Aluminium is significantly more resistant to impact damage compared to plastic. If you regularly bash your crawler or run challenging courses, this upgrade protects a critical wear point and reduces the frequency of replacements you'll need over time.
- Professional-Grade Build Quality — Fastrax parts are known throughout the RC crawler community for reliable performance and meticulous manufacturing. This body post mount is no exception, delivering the precision fit and finish you'd expect from a professional-grade upgrade component.
- Improved Chassis Response — The increased stiffness provided by aluminium posts directly translates to more predictable vehicle behaviour. Your TRX-4 will respond more immediately to steering inputs and maintain better body control during transitions and technical manoeuvres, giving you greater confidence and control.
Technical Performance
The Fastrax TRX-4 Aluminium Front/Rear Body Post Mount represents a significant step up from the standard plastic posts in terms of structural performance and longevity. Manufactured from precision-engineered aluminium alloy, this component addresses one of the most critical areas of chassis stiffness on any 1/10 scale crawler platform. The TRX-4 platform itself is renowned for its outstanding climbing ability, articulation, and scale realism, but like any crawler, the chassis benefits enormously from upgrades that increase overall rigidity. By replacing the plastic body posts with aluminium equivalents, you effectively increase the lateral stiffness of the chassis during cornering and improve the vehicle's ability to maintain consistent suspension geometry over uneven terrain. The material choice is critical: whilst plastic can flex under load, causing the body to shift relative to the chassis, aluminium maintains its shape consistently, ensuring that your suspension geometry remains true and your tyres maintain optimal contact with the ground. This is particularly important when crawling over rocks and obstacles where chassis flex can mean the difference between maintaining traction and losing control. The upgrade is lightweight enough that it doesn't compromise the weight distribution or balance of your TRX-4, yet rigid enough to provide measurable improvements in handling and durability. Installation is straightforward, as Fastrax has engineered these posts to be exact replacements for the original components, requiring no drilling, fitting, or chassis modification. Whether you're running on clay tracks, rocky terrain, or rocky mountainsides, this upgrade delivers the kind of precision engineering that modern RC crawling demands.
What's in the Box
- Fastrax TRX-4 Aluminium Front/Rear Body Post Mount
Frequently Asked Questions
- Is the Fastrax TRX-4 Aluminium Body Post Mount compatible with all TRX-4 models? — Yes, this mount is compatible with a wide range of Traxxas TRX-4 variants, including the Chevrolet K10 Cheyenne High Trail Edition (available in red, metallic blue, black, and metallic copper), the Ford F-150 Ranger XLT High Trail Edition (brown, blue, and black), the 1972 Chevrolet K5 Blazer High Trail Edition (blue and red), the 1979 Chevy Blazer (black and red), the Nissan Pathfinder SE-V6 3S RTR (red and silver), the 2021 Ford Bronco (red, white, orange, and black), the Defender 4WD RTR (red, silver, green, and sand), the TRX-4 Sport models (orange, grey, and blue), and the unassembled chassis kit. If you own a TRX-4 crawler, this mount will fit your model.
- Will this upgrade make a noticeable difference to my TRX-4's handling? — Yes, upgrading from plastic to aluminium body posts will noticeably improve chassis stiffness and handling predictability. You'll experience improved body control during cornering and technical manoeuvres, and the vehicle will respond more immediately to steering inputs. The increased rigidity also helps maintain consistent suspension geometry over challenging terrain.
- How difficult is installation? — Installation is very straightforward. The aluminium post mount is a direct replacement for the standard plastic posts, requiring no modifications to your chassis or any special tools beyond the hex wrenches you likely already use for basic TRX-4 maintenance. Most users can complete the upgrade in just a few minutes.
- Why choose aluminium over plastic? — Aluminium offers superior stiffness without adding significant weight, making it the ideal material for chassis upgrades on RC crawlers. Plastic can flex under load, which affects handling and durability, whilst aluminium maintains its shape consistently, providing more predictable vehicle behaviour and greater resistance to impact damage. This makes it especially valuable for users who run their TRX-4 regularly or tackle demanding terrain.
- Can I upgrade just the front or rear, or do I need to upgrade both? — You can upgrade one location at a time if you prefer. Many users start with either the front or rear posts and then add the remaining posts later. For maximum chassis stiffness and the best handling improvement, however, upgrading all posts is recommended.
- Is this part backed by any warranty or guarantee? — Fastrax parts are manufactured to high quality standards. Verify the specific warranty terms with your retailer, but Fastrax stands behind their products with reliable performance and support.
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 Fastrax TRX-4 Aluminium Front/Rear Body Post Mount FTTX324BK 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: Fastrax
- Model Number: FTTX324BK
- EAN: 5056135714515
- Product Type: Chassis Tune-Up / Body Post Mount
- Material: Aluminium (Lightweight, high-strength alloy construction)
- Compatibility: Traxxas TRX-4 and all variants including Chevrolet K10 Cheyenne High Trail Edition (red, metallic blue, black, metallic copper), Ford F-150 Ranger XLT High Trail Edition (brown, blue, black), 1972 Chevrolet K5 Blazer High Trail Edition (blue, red), 1979 Chevy Blazer (black, red), Nissan Pathfinder SE-V6 3S RTR (red, silver), 2021 Ford Bronco (red, white, orange, black), Defender 4WD RTR (red, silver, green, sand), TRX-4 Sport variants (orange, grey, blue), and unassembled chassis kits
- Position: Front and Rear body post mount
- Installation: Direct drop-in replacement, no chassis modification required
- Finish: Precision-engineered aluminium with professional-grade build quality
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.
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