Overview
The Traxxas Gear Set, centre Differential (TRX6783) is an essential replacement component for owners of high-performance Traxxas RC vehicles. This genuine OEM differential gear set is engineered to restore your RC car's transmission to factory specifications, ensuring smooth power delivery and precise handling characteristics. Whether you're a dedicated basher enjoying weekend RC adventures across the UK, a competitive racer maintaining your vehicle between events, or an experienced hobbyist fine-tuning your setup, this centre differential gear set delivers the reliability and performance you expect from Traxxas. Designed as a direct replacement for models including the Traxxas Slash 4X4 BL-2S, this transmission component maintains the integrity of your RC vehicle's drivetrain.
Centre differential gears are critical to the performance of 4WD RC vehicles, controlling how power is distributed between the front and rear axles during acceleration, cornering and deceleration. Over time, through normal use and aggressive driving, differential gears can wear, strip or become damaged, resulting in unpredictable handling, reduced traction and drivetrain noise. By installing a genuine Traxxas replacement gear set, you restore your vehicle to its original specification and unlock the full potential of your RC model. This is precisely the type of maintenance component that serious RC enthusiasts in the UK keep in their spares box.
RC Model Shop stocks genuine Traxxas components because we understand that your RC vehicle is an investment worth protecting. When you need replacement parts, you want components engineered by the manufacturer to exacting standards, not budget aftermarket alternatives that compromise performance and longevity. This centre differential gear set represents authentic Traxxas engineering, compatible with multiple models and built to withstand the demands of competitive racing and recreational bashing alike.
Key Features
- Complete Centre Differential Gear Set — This comprehensive package includes everything required for a full differential rebuild: two output gears that transfer power to the axles, four spider gears that distribute torque and enable differential action between wheels, and two spider gear shafts that hold the spider gears in position and allow them to rotate freely during cornering. This all-in-one package eliminates the need to purchase individual components separately.
- Genuine Traxxas OEM Component — Manufactured to Traxxas specifications using quality materials and precision machining, ensuring perfect fitment and durability compared to aftermarket alternatives. Original equipment manufacturer gears are engineered to work seamlessly with your vehicle's differential housing and deliver the exact performance characteristics Traxxas designed into your model.
- Transmission Tune-Up Option — Classified as a transmission tune-up component, this gear set allows you to refresh and optimise your RC vehicle's drivetrain. Whether you're addressing wear and tear, upgrading from damaged gears, or simply maintaining your vehicle at peak performance, this is the correct replacement specified by Traxxas.
- Compatible with Traxxas Slash 4X4 BL-2S Models — Specifically engineered for the Traxxas Slash 4X4 BL-2S 1/10 4WD RTR brushless electric short course truck, with compatibility across multiple colour variants including the Green and Fox versions. The Slash 4X4 BL-2S is one of the most popular brushless RC short course trucks in the UK, making this a widely applicable replacement component.
- Restores Factory Performance — When centre differential gears wear or damage, your vehicle's handling becomes unpredictable and drivetrain efficiency drops. Installing this genuine replacement gear set restores your Slash 4X4 to its original factory performance characteristics, delivering crisp handling response and reliable power delivery in all driving conditions.
- Essential Maintenance Component — Every serious RC enthusiast understands that differential gears require periodic maintenance and eventual replacement. This Traxxas component is precisely what you need when your vehicle's differential requires attention, whether due to normal wear, aggressive track use or damage from impacts.
Technical Performance
The centre differential is one of the most sophisticated components in a four-wheel-drive RC vehicle, and this Traxxas gear set represents precision engineering designed to optimise torque distribution and handling dynamics. The output gears interface directly with the axle shafts, transferring power from the transmission to the wheels. The spider gears (also called differential gears) work in conjunction with the spider gear shafts to create what engineers call differential action—the mechanical process that allows the outer wheels to rotate faster than inner wheels during cornering, reducing tyre scrub and improving handling precision. This is especially important in competitive short course truck racing, where drivers demand maximum cornering speed and precise steering response. The Traxxas Slash 4X4 BL-2S is a 1/10 scale brushless electric short course truck capable of serious performance, and this differential gear set must transmit substantial torque loads while maintaining smooth operation. Traxxas manufactures these components from durable materials engineered to withstand the power outputs of modern brushless electric motors. The precision of the gear teeth, the accuracy of the shaft tolerances, and the material selection all contribute to a gear set that delivers reliability, smooth operation and longevity. Whether you're running 2S or 3S LiPo batteries in your Slash 4X4, or pushing your vehicle to its limits at a local track, this centre differential gear set provides the foundation for predictable, responsive handling and dependable drivetrain performance.
What's in the Box
- Output gears (2 pieces)
- Spider gears (4 pieces)
- Spider gear shafts (2 pieces)
What You Need to Complete
- Differential housing (your vehicle's existing housing can be reused)
- Differential cover or housing retaining hardware
- Transmission fluid or differential oil (if your model uses wet differential lubrication)
- Basic RC tools for disassembly and reassembly (small wrenches, screwdrivers)
Frequently Asked Questions
- What is a centre differential and why do I need a replacement gear set? — The centre differential is a critical component in 4WD RC vehicles that controls how power is distributed between the front and rear axles. It contains gears (output gears and spider gears) that can wear down, strip, or break through normal use or aggressive driving. When differential gears are damaged or worn, your vehicle may exhibit poor handling, unreliable traction, grinding noises, or inconsistent performance. A replacement gear set restores your vehicle's drivetrain to factory specifications and resolves these issues.
- Is this suitable for beginners? — This is a replacement component rather than a complete vehicle, so it's designed for RC enthusiasts with some mechanical experience. Disassembling and reassembling a differential requires careful attention to detail, clean working conditions, and familiarity with small RC mechanical components. However, if you're handy with tools and willing to follow Traxxas assembly instructions, this is a manageable maintenance task. Beginners may prefer to have an experienced friend or local RC hobby shop assist with installation.
- Will this work with my Traxxas Slash 4X4? — This centre differential gear set is specifically engineered for the Traxxas Slash 4X4 BL-2S 1/10 4WD RTR brushless electric short course truck, including both the Green and Fox colour variants. If you own a Slash 4X4 BL-2S, this is the correct replacement component. If you own a different Traxxas model, confirm compatibility with the model-specific documentation or contact RC Model Shop for guidance.
- How often do centre differential gears need replacing? — For recreational bashers, centre differential gears typically last many months of regular use. Competitive racers or drivers who push their vehicles hard may need replacements more frequently, as differential gears transmit substantial torque loads and can wear faster under extreme conditions. Factors affecting gear life include driving style, track surface, terrain, maintenance practices, and lubrication. Inspect your differential regularly; if you notice noise, grinding, or handling changes, it's time to replace the gears.
- Is this a genuine Traxxas component? — Yes, this is a genuine OEM (original equipment manufacturer) Traxxas part manufactured to exacting Traxxas specifications. When you purchase from RC Model Shop, an authorised Traxxas retailer in the UK, you receive authentic components backed by Traxxas engineering and quality standards. Genuine components ensure perfect fitment, optimal performance, and long-term reliability.
- What tools do I need to install this gear set? — You'll need basic RC tools including small wrenches or hex keys to remove the differential housing, small screwdrivers, and ideally a clean workbench and small containers to organise small components during disassembly. A detailed assembly guide (available from Traxxas documentation) will specify exact tools and procedures for your specific model.
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 Gear Set, centre Differential (output gears (2 pcs) / spider gears (4 pcs) / spider gear shaft (2 pcs)) TRX6783 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.
- Product Type: Centre Differential Gear Set
- Manufacturer: Traxxas
- Model Number: TRX6783
- Part Number (OEM): 8583
- EAN Code: 0020334678300
- Tune-Up Type: Transmission
- Contents: Output gears (2 pieces), spider gears (4 pieces), spider gear shafts (2 pieces)
- Compatible Models: Traxxas Slash 4X4 BL-2S 1/10 4WD RTR Brushless Electric Short Course Truck (Green variant TRX68154-4-GRN and Fox variant TRX68154-4-FOX)
- Vehicle Scale: 1/10
- Vehicle Type: 4WD Short Course Truck
- Power System: Brushless Electric
- Gear Set Application: Centre Differential replacement component for four-wheel-drive vehicles
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