Traxxas Long Arm Lift Kit, TRX-4, complete TRX8140

Overview

The Traxxas Long Arm Lift Kit for TRX-4 is the ultimate suspension upgrade for RC enthusiasts looking to conquer more challenging terrain with style and capability. This comprehensive suspension enhancement transforms your TRX-4 crawler by raising the chassis and accommodation for larger 2.2-inch wheels and tyres, giving your RC car UK setup the ground clearance needed to tackle rocks, obstacles, and uneven ground that standard suspension simply cannot handle. Whether you're a dedicated trail crawler, a weekend basher exploring natural terrain, or a serious RC hobbyist in the UK seeking to expand your vehicle's capabilities, this lift kit represents a significant performance upgrade that combines engineering excellence with practical functionality.

Traxxas has engineered this complete lift kit solution to work seamlessly with your existing TRX-4 platform, ensuring compatibility and reliability that serious RC enthusiasts demand. The kit includes everything needed for installation—longer GTS aluminium shocks, stiffer springs, extended driveshafts, revised suspension links, and T-Lock cables—meaning you have a complete suspension transformation in one package. This is not merely a cosmetic upgrade; it represents a fundamental improvement to your crawler's abilities and the way it handles diverse terrain challenges.

What sets this apart from other suspension modifications is the engineering intelligence built into every component. The revised servo mount is a critical inclusion, lowering the servo position to maintain proper suspension geometry and steering response even with the increased ride height. This attention to detail ensures that your TRX-4 doesn't just sit higher—it performs better with improved suspension articulation, better weight distribution, and more responsive steering characteristics across all terrain types.

Key Features

• Complete Lift Kit Solution — This is not a partial upgrade or cosmetic modification; it's a fully comprehensive suspension kit that includes every component needed to transform your TRX-4, eliminating the frustration of searching for compatible parts individually.
• Longer GTS Aluminium Shocks — The extended shock absorbers are constructed from quality aluminium and engineered to accommodate the increased suspension travel and ride height, providing durability and consistent performance through thousands of cycles on demanding terrain.
• Enhanced Spring Rate Suspension — Stiffer springs are included to support the increased chassis height and handle the weight distribution changes that come with a lifted platform, ensuring your crawler maintains control and stability.
• Extended Driveshafts — Longer drive shafts compensate for the increased suspension geometry changes, maintaining proper drivetrain angles and preventing binding or excessive wear on CV joints during extreme articulation.
• Revised Suspension Links — New suspension geometry components ensure that all angles and pivot points work in harmony, maintaining the designed suspension travel and preventing geometry-induced handling issues.
• T-Lock Cable System — These specialized locking cables maintain suspension geometry under extreme conditions and ensure that suspension components stay properly aligned during intense off-road driving.
• Revised Servo Mount — A critical engineering feature that lowers the servo position to maintain proper suspension and steering geometry despite the chassis being raised, preserving steering responsiveness and precision.
• Accommodates 2.2-Inch Wheels and Tyres — The increased ground clearance and suspension geometry allow you to fit larger diameter wheels and tyres, opening up new tyre options and dramatically improving terrain capability.
• Compatible with Multiple TRX-4 Models — This lift kit works across the entire TRX-4 range, including Chevrolet K10 Cheyenne, Ford F-150 Ranger XLT, Chevrolet K5 Blazer, Nissan Pathfinder, Ford Bronco, Defender and Sport variants, making it a versatile upgrade for TRX-4 owners throughout the UK.

Technical Performance

The Traxxas Long Arm Lift Kit represents significant engineering designed to enhance the TRX-4's crawling and terrain capability. The kit's suspension components are manufactured from premium aluminium, chosen for its excellent strength-to-weight ratio and durability under the stresses of extreme off-road use. The longer GTS shocks provide extended suspension travel, critical for maintaining tyre contact with uneven ground and allowing the chassis to achieve greater articulation when navigating rocks and obstacles. The revised suspension links and extended driveshafts work together to maintain proper Ackermann geometry and suspension angles, preventing the handling problems and component wear that can result from radical modifications made without proper engineering. The T-Lock cable system adds an extra layer of geometric control, particularly valuable when pushing your crawler to extreme lean angles. The inclusion of a revised servo mount demonstrates Traxxas's commitment to complete system integration—raising the chassis without lowering servo position would compromise steering precision and cause geometry issues, but this kit solves that problem through intelligent design. Whether you're running your TRX-4 through rocky stream beds, climbing steep terrain, or navigating through technical trail obstacles, this lift kit transforms your crawler into a more capable platform with increased ground clearance, better suspension articulation, and improved ability to fit larger 2.2-inch wheels and tyres.

What's in the Box

• Longer GTS aluminium shocks
• Suspension springs (stiffer rate)
• Extended driveshafts
• Revised suspension links
• T-Lock cables
• Revised servo mount

Compatibility

The Traxxas Long Arm Lift Kit is specifically engineered for the TRX-4 platform and is compatible with the entire TRX-4 model range, including: TRX-4 Chevrolet K10 Cheyenne High Trail Edition (all colour variants: Black, Metallic Silver, Metallic Blue, Brown, Blue, Red, and Metallic Copper), TRX-4 Ford F-150 Ranger XLT High Trail Edition, TRX-4 Chevrolet K5 Blazer High Trail Edition, TRX-4 1979 Chevy Blazer, TRX-4 Nissan Pathfinder SE-V6 3S, TRX-4 2021 Ford Bronco, TRX-4 Defender, and TRX-4 Sport models. Before purchasing, verify your specific TRX-4 model against this compatibility list to ensure proper fit and function.

Frequently Asked Questions

• What is the purpose of the Traxxas Long Arm Lift Kit? — The kit raises your TRX-4 chassis to accommodate larger 2.2-inch wheels and tyres, providing significantly increased ground clearance and terrain-conquering capability. This increased height improves your crawler's ability to navigate rocks, obstacles, and challenging terrain while allowing you to select from a wider range of tyre options available in the RC market.
• Will the lift kit affect my TRX-4's handling and steering? — No—Traxxas has engineered this kit with a revised servo mount that maintains proper suspension and steering geometry despite the increased chassis height. This intelligent design ensures your crawler retains responsive steering and predictable handling even with the raised platform.
• Which TRX-4 models is this lift kit compatible with? — The Long Arm Lift Kit is designed for all TRX-4 variants, including the Chevrolet K10 Cheyenne, Ford F-150 Ranger XLT, Chevrolet K5 Blazer, Nissan Pathfinder, Ford Bronco, Defender and Sport models across all colour options. Verify your specific model before purchasing.
• Do I need any additional parts to install this lift kit? — The kit comes complete with all suspension components needed for installation: shocks, springs, driveshafts, suspension links, T-Lock cables and revised servo mount. You will not need to purchase additional suspension components, though you may want to source larger 2.2-inch wheels and tyres to fully utilise the increased ground clearance.
• Can I still use my original wheels and tyres with this lift kit? — Yes, the lift kit will work with your existing wheels and tyres, but the primary benefit is that it creates clearance to accommodate larger 2.2-inch wheels and tyres. Using smaller tyres defeats much of the purpose of the lift, as the main advantage is the dramatically increased ground clearance and terrain capability that come from fitting larger diameter tyres.
• Is installation of the Long Arm Lift Kit difficult? — Installation requires a reasonable level of mechanical knowledge and RC building experience, as it involves complete suspension disassembly and reassembly with new geometry components. If you're experienced with working on RC vehicles, you should find the installation straightforward. If you're new to RC modifications, you may wish to seek guidance from experienced RC enthusiasts or consider having your local RC shop handle the installation.
• Will this lift kit improve my crawler's performance on rocks and obstacles? — Yes, significantly. The increased ground clearance prevents the chassis from hitting rocks and obstacles that would otherwise cause damage. The longer suspension travel from the extended GTS shocks allows better chassis articulation, meaning your TRX-4 can achieve more extreme lean angles and better maintain tyre contact with uneven 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 Long Arm Lift Kit, TRX-4, complete TRX8140 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.