Overview
The Traxxas Gearbox Halves (Front & Rear) with rubber access plug represent essential replacement and upgrade components for Traxxas RC vehicles. Whether you're a dedicated RC enthusiast running a high-performance brushless RC car in the UK or someone who enjoys regular weekend bashing sessions, maintaining your gearbox in pristine condition is crucial for reliable performance and longevity. These genuine Traxxas parts are engineered to exacting standards and provide the durability you need to keep your RC model running smoothly through countless driving sessions.
Part number TRX5391R is a complete gearbox assembly solution that includes everything needed for front and rear gearbox replacement or repair. This product is particularly valuable for RC car owners who push their vehicles hard, as gearboxes can experience wear and tear from extended use, jumps, and high-speed running. Having a quality replacement gearbox assembly on hand means you can quickly get back on the track or field without lengthy downtime. For anyone serious about their RC hobby in the UK, whether competing in local racing events or enjoying recreational driving, these Traxxas gearbox halves are an indispensable spare part to keep in your toolbox.
Traxxas has built its reputation on manufacturing genuine, high-quality RC components that deliver performance and reliability. These gearbox halves are no exception, manufactured to the same rigorous standards as the factory equipment found on new Traxxas vehicles. By choosing genuine Traxxas parts from an authorised UK retailer, you're ensuring compatibility with your specific model and maintaining the performance characteristics your RC car was designed to deliver.
Key Features
- Front and Rear Gearbox Halves — This complete assembly includes both front and rear gearbox halves, allowing you to address wear in either or both locations with a single purchase, saving time and ensuring your entire drivetrain is refreshed simultaneously.
- Rubber Access Plug — The included rubber access plug provides convenient internal access to gearbox components for maintenance, adjustment, and cleaning, while maintaining a proper seal to keep dirt and moisture out when not in use.
- Shift Detent Ball — This precision component works within the gearbox mechanism to ensure smooth and reliable gear engagement, providing the crisp shifting action expected from Traxxas vehicles.
- Spring Component — The included spring maintains proper tension within the gearbox assembly, ensuring all internal mechanisms function correctly and reliably throughout extended driving sessions.
- 4mm GS Specification — The 4mm GS specification indicates this component meets Traxxas engineering standards for durability and performance, ensuring compatibility with vehicles designed for this specification.
- Shift Shaft Seal — The precision shift shaft seal prevents internal lubricant leakage while keeping external contaminants out of the gearbox, maintaining optimal performance and extending component lifespan.
- Pre-Glued Assembly — This gearbox arrives factory-glued and ready for installation, eliminating the need for adhesive application and ensuring the halves remain permanently bonded during use.
- Genuine Traxxas Manufacturing — As an official Traxxas component, this part is engineered to the same standards as factory equipment, guaranteeing perfect fitment and long-term reliability in your RC model.
Technical Performance
The TRX5391R gearbox halves represent the pinnacle of Traxxas engineering for drivetrain reliability. Constructed from robust materials engineered to withstand the stresses of high-performance RC driving, these components are designed for durability during extended use on both track and terrain. The complete assembly includes all necessary internal components—the shift detent ball, spring, and shift shaft seal—ensuring that when you receive these gearbox halves, you have everything required for a complete drivetrain solution. The 4mm GS specification aligns with Traxxas quality standards, providing assurance that these components will integrate seamlessly with your existing RC car. The rubber access plug allows quick internal inspection and maintenance without complete gearbox disassembly, whilst the precision shift shaft seal maintains proper lubrication levels and prevents contamination. Whether you're running high-speed on a circuit, tackling challenging off-road terrain, or enjoying casual bashig with your RC car, these gearbox halves deliver the performance characteristics expected from genuine Traxxas equipment. The pre-glued construction means no assembly time—simply install and drive. These components are particularly valuable for RC enthusiasts in the UK who demand reliability from their machines and want to minimise downtime between driving sessions.
What's in the Box
- Front gearbox half
- Rear gearbox half
- Rubber access plug
- Shift detent ball
- Spring
- Shift shaft seal
Frequently Asked Questions
- Are these gearbox halves compatible with my Traxxas RC car? — The TRX5391R is designed as a genuine Traxxas replacement part. Compatibility depends on your specific model, so we recommend checking your vehicle's manual or contacting our expert team at RC Model Shop to confirm fitment before ordering. Our staff can quickly verify whether this component is suitable for your particular Traxxas vehicle.
- How often should I replace my gearbox halves? — Gearbox replacement frequency depends on your driving style and conditions. Weekend bashers might go years without replacement, whilst competitors who push their vehicles to the limit may need replacements more frequently. Regular inspection through the access plug will help you determine when replacement is necessary. If you notice grinding, slipping, or difficulty shifting, it's time to consider replacement.
- What is included in this gearbox assembly? — This complete kit includes both front and rear gearbox halves, rubber access plug, shift detent ball, spring, and shift shaft seal. Everything needed for gearbox replacement is included, though you may need additional lubricant depending on your preferences.
- Do I need to glue these halves together? — No, these gearbox halves arrive pre-glued from Traxxas, so there's no assembly or adhesive application required. Simply install them into your vehicle and you're ready to drive.
- Can I repair my existing gearbox or do I need to replace the entire assembly? — Individual internal components like the shift detent ball, spring, and seal can sometimes be replaced separately if you're an experienced builder. However, for most owners, replacing the complete gearbox assembly with this TRX5391R kit ensures reliable, trouble-free performance and is often more cost-effective than troubleshooting individual component failures.
- Where can I get expert advice on gearbox maintenance for my RC car? — The team at RC Model Shop in Walsall has extensive knowledge of Traxxas vehicles and drivetrain maintenance. Whether you're shopping online or visiting our physical store, our experienced RC enthusiasts can provide guidance on gearbox care, replacement timing, and proper installation techniques.
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 (Front & Rear) / rubber access plug / shift detent ball / spring / 4mm GS / shift shaft seal, Glued TRX5391R 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: Gearbox halves assembly with internal components
- Brand: Traxxas
- Model number: TRX5391R
- Configuration: Front and rear gearbox halves
- Included components: Gearbox halves (front and rear), rubber access plug, shift detent ball, spring, shift shaft seal
- Specification: 4mm GS
- Assembly state: Pre-glued and ready to install
- Compatibility: Genuine Traxxas replacement component
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.
