Traxxas Half Shaft Steel External Spline Constant Velocity TRX6750

Overview

The Traxxas Half shaft, external splined (Steel-spline constant-velocity) (1pc) TRX6750 is an essential replacement part for serious RC enthusiasts and competitors who demand reliability and performance from their Traxxas RC cars and trucks. Whether you're running a high-powered 1/10 scale buggy, monster truck, or stadium truck on UK tracks or bashing in the countryside, drivetrain components like half shafts experience significant stress during acceleration, cornering and jumps. This replacement steel external-spline CV half shaft is engineered to withstand the demands of competitive racing and weekend bashing alike, making it an indispensable spare part for your RC toolkit.

As an authorised Traxxas retailer, RC Model Shop stocks genuine OEM replacement parts that ensure your RC vehicle maintains peak performance and reliability. The TRX6750 half shaft is specifically designed as a direct replacement for the 9450 steel CV driveshaft system, meaning it integrates seamlessly with your existing Traxxas drivetrain without modification or compatibility issues. Whether you're a seasoned RC racer running competitive events across the UK or a casual enthusiast who enjoys weekend bashing sessions, having quality replacement parts like this on hand ensures minimal downtime and maximum fun.

RC cars and trucks demand precision engineering throughout every system, and the drivetrain is no exception. When you invest in genuine Traxxas spare parts like the TRX6750 half shaft, you're choosing components manufactured to the same exacting standards as the vehicles themselves. This steel-spline constant-velocity half shaft offers superior durability compared to plastic alternatives, making it an excellent choice for high-performance applications where reliability matters.

Key Features

• Steel External-Spline Construction — This half shaft features steel external splines rather than plastic, which provides exceptional strength and durability under high-torque conditions that are common in performance RC driving and racing applications.
• Constant-Velocity (CV) Design — The CV joint design ensures smooth power delivery at all suspension angles, maintaining consistent torque transmission whether your RC vehicle is compressed through a jump or extended during aggressive cornering manoeuvres.
• Direct OEM Replacement — Engineered as a genuine replacement for the Traxxas 9450 steel CV driveshaft system, this component ensures perfect fitment and compatibility with your existing Traxxas vehicle without any modification required.
• Enhanced Durability — The steel spline construction significantly outlasts plastic alternatives, making this an ideal upgrade or replacement for drivers who push their RC vehicles to the limit and want components that can handle the punishment.
• Single Piece Design — This package contains one half shaft, allowing you to replace damaged or worn components individually rather than buying complete drivetrain sets unnecessarily.

Technical Performance

The Traxxas TRX6750 half shaft represents quality engineering focused on drivetrain reliability and performance longevity. The steel external-spline construction is significantly more robust than plastic spline designs, offering superior resistance to stripping and failure under high-torque conditions. The constant-velocity joint design is critical for maintaining smooth power delivery across the full range of suspension motion — whether your RC vehicle is fully compressed during a heavy landing or fully extended during aggressive cornering. This design minimises bind and ensures efficient power transmission, which translates to better acceleration, handling predictability, and overall driving experience. The spline geometry is precisely machined to Traxxas specifications, ensuring that engagement with mating components is secure and durable. For drivers running high-performance brushless motors on 3S or 4S LiPo batteries, upgrading to steel-spline half shafts provides the mechanical durability needed to handle the increased power and torque delivery. The TRX6750 has been proven in competitive racing environments across the UK and beyond, where drivers demand absolute reliability. Whether you're replacing a worn component or upgrading for enhanced durability, this half shaft delivers the performance-grade quality that Traxxas is recognised for worldwide.

What's in the Box

• 1 x Traxxas Steel External-Spline CV Half Shaft (TRX6750)

Frequently Asked Questions

• What is the difference between steel-spline and plastic-spline half shafts? — Steel-spline half shafts like the TRX6750 offer significantly greater durability and strength compared to plastic alternatives. Steel resists stripping and failure under high-torque conditions, making it the preferred choice for competitive racing and high-performance applications. Plastic splines may be adequate for casual bashing but lack the longevity needed for serious drivers pushing their vehicles to the limit.
• Is this a direct replacement for my Traxxas vehicle? — Yes, the TRX6750 is a genuine OEM replacement specifically engineered for the Traxxas 9450 steel CV driveshaft system. It will fit directly into your existing drivetrain without any modification or compatibility concerns. Always verify your vehicle's drivetrain specification before ordering to ensure compatibility.
• Will this half shaft upgrade my standard plastic-spline drivetrain? — The TRX6750 is designed as a replacement component for vehicles already equipped with the 9450 steel CV driveshaft system. If your vehicle currently uses plastic splines, you would need to upgrade the complete driveshaft assembly, not just the half shaft. Contact our team at RC Model Shop if you need guidance on upgrading your specific vehicle's drivetrain.
• How often should I replace my half shafts? — Half shaft lifespan depends on driving style, vehicle setup, motor power, and maintenance. High-performance drivers running brushless motors on 4S LiPo may need replacements more frequently than casual bashers. Inspect your half shafts regularly for signs of wear, spline damage, or play in the joints. If you notice vibration, clicking sounds, or power delivery inconsistencies, it may be time to replace worn components.
• Is the TRX6750 suitable for competitive racing? — Yes, the steel-spline construction makes this half shaft suitable for competitive racing environments where reliability is paramount. Traxxas components are used by racers worldwide in off-road buggy, truck, and stadium racing competitions. This part meets the durability demands of serious competition.
• Do I need to replace both half shafts at the same time? — While not strictly necessary, many experienced RC drivers recommend replacing half shafts in pairs to maintain balanced drivetrain performance. If one half shaft has failed, the other may be approaching similar wear levels. The TRX6750 is sold individually, so you can purchase two if needed for your vehicle.

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 Half shaft, external splined (Steel-spline constant-velocity) (1pc) TRX6750 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.