Overview
The Traxxas Gearbox halves (left & right) (Grey) with idler gear shaft TRX3691A is an essential replacement chassis spare part for Traxxas RC enthusiasts in the UK. Whether you're maintaining your Bandit, Rustler, Stampede, or Slash, or upgrading to the latest XL-5 and VXL models, this gearbox component delivers the reliability and precision engineering you expect from the world's leading RC car manufacturer. These grey gearbox halves represent the new generation of Traxxas gearbox design, offering improved durability and performance for both casual bashers and competitive racers alike.
As a dedicated RC car UK hobbyist, you understand that the gearbox is the heart of your vehicle's drivetrain. This replacement part ensures your ready to run RC short course truck or stadium truck maintains optimal power delivery and acceleration. The left and right halves work together with the included idler gear shaft to create a robust transmission system capable of handling the demands of high-speed running, jumps, and rough terrain. Whether you've damaged your existing gearbox through hard use or simply want to upgrade to the latest Traxxas engineering, these halves are the perfect solution.
Traxxas has engineered these gearbox halves specifically for compatibility with a wide range of their most popular models, including the Slash HD XL-5 series in various colours. The grey finish not only looks great but also matches the aesthetic of modern Traxxas chassis designs. If you're serious about maintaining your RC model vehicle or keeping spare parts on hand for competitive events, these gearbox halves are an absolute necessity.
Key Features
- Left and Right Halves Included — This package contains both the left and right gearbox halves, giving you a complete replacement unit that functions as a matched pair to ensure smooth, balanced gear meshing and optimal power transmission through your RC model's drivetrain.
- Idler Gear Shaft Included — The idler gear shaft is supplied with these halves, ensuring you have all the essential components needed to assemble a functioning gearbox without requiring additional purchases from RC retailers.
- Grey Colour Finish — The contemporary grey finish matches the latest Traxxas chassis designs and gives your RC car a modern, factory-fresh appearance that appeals to both aesthetic and performance-conscious drivers in the UK RC community.
- New Version for XL-5 and VXL Models — These halves represent the latest generation of Traxxas gearbox design, optimised for both the XL-5 brushless system and VXL performance variants, delivering improved reliability and durability compared to older versions.
- Universal Compatibility — Designed to work with multiple Traxxas short course truck models including Bandit, Rustler, Stampede, and Slash families, making these halves versatile spares for anyone running multiple Traxxas vehicles.
- OEM Traxxas Quality — Manufactured to exact Traxxas specifications using precision engineering and quality materials, ensuring these gearbox halves meet the same rigorous standards as the original equipment fitted to new vehicles.
Technical Performance
The Traxxas Gearbox halves (left & right) (Grey) with idler gear shaft TRX3691A represent the pinnacle of RC drivetrain engineering for Traxxas's popular short course truck platform. These components are manufactured using durable materials that withstand the punishing forces generated during high-speed acceleration, hard landings from jumps, and aggressive cornering. The precision-machined halves fit together with exact tolerances to ensure smooth gear meshing, minimising backlash and power loss. The included idler gear shaft is engineered to maintain perfect gear alignment, preventing premature wear and ensuring consistent power delivery to your RC vehicle's wheels. Built to Traxxas's exacting standards, these gearbox halves deliver the reliability expected from the world's most trusted RC car manufacturer, with proven performance across thousands of vehicles in the hands of UK RC enthusiasts, weekend bashers, and competitive racers alike.
What's in the Box
- Gearbox half (left)
- Gearbox half (right)
- Idler gear shaft
Frequently Asked Questions
- Which Traxxas models are compatible with the TRX3691A gearbox halves? — These gearbox halves are compatible with the Traxxas Bandit, Rustler, Stampede, and Slash families, with specific confirmed compatibility for the Slash HD XL-5 series including the blue, orange, green, and red versions. This makes them ideal replacements for anyone running these popular short course trucks in the UK.
- What makes the new version different from older Traxxas gearbox halves? — The TRX3691A represents the new generation design specifically optimised for XL-5 brushless models and VXL performance variants, incorporating improved engineering and durability enhancements over previous versions to handle the power and demands of modern brushless RC systems.
- Do I get everything I need to install these gearbox halves? — Yes, both the left and right halves come with the idler gear shaft included, providing all the essential components needed for gearbox assembly. However, you may need additional hardware such as screws and bearings depending on your existing setup and whether you're doing a complete gearbox rebuild.
- Are these genuine Traxxas parts? — Yes, these are official Traxxas gearbox halves manufactured to exact OEM specifications, part number TRX3691A, ensuring you receive authentic components built to Traxxas's rigorous quality standards.
- Why would I need replacement gearbox halves? — Gearbox halves may require replacement due to wear and tear from extensive use, damage from hard crashes, or if you're upgrading to the latest XL-5 or VXL system. Keeping spare gearbox components on hand is essential for competitive racers and serious hobbyists who want to minimise downtime.
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 Gearbox halves (left & right) (Grey) with idler gear shaft TRX3691A 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: TRX3691A
- Product Type: Gearbox Halves with Idler Gear Shaft
- Configuration: Left and Right halves (pair)
- Colour: Grey
- Version: New version for XL-5 and VXL models
- Compatible Models: Traxxas Bandit, Rustler, Stampede, Slash
- Specific Compatibility: Slash HD XL-5 1/10 2WD RTR Short Course Truck (all colour variants)
- EAN Code: 0020334369154
- Spare Part Classification: Chassis Spares
- Contents: Gearbox half (left), Gearbox half (right), Idler gear shaft
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.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- 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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- 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.
