Overview
The Traxxas Rebuild kit, slipper clutch (TRX7789) is an essential maintenance component for RC enthusiasts who demand reliability and performance from their Traxxas vehicles. Whether you're running a high-performance RC car UK or a competitive off-road machine, the slipper clutch is a critical component that protects your drivetrain from damage during high-torque situations and rapid acceleration. This genuine Traxxas rebuild kit provides everything you need to restore your slipper clutch to factory specifications, ensuring optimal performance and longevity of your RC model.
Designed for serious RC hobbyists and racers alike, this rebuild kit is perfect for those who understand the importance of regular maintenance and component replacement. If you've noticed slippage in your slipper clutch or simply want to refresh this vital drivetrain element, this comprehensive kit contains all the necessary components to get your Traxxas vehicle back to peak performance. For anyone involved in competitive RC racing or weekend bashing, having spare slipper clutch rebuild kits on hand is a mark of a well-prepared operator.
The slipper clutch serves a crucial function in modern RC vehicles by allowing controlled slippage during extreme acceleration or when the wheels encounter sudden resistance. This prevents catastrophic damage to gears, motors, and driveshafts that would otherwise occur with a locked-up drivetrain. By choosing a genuine Traxxas rebuild kit, you're investing in the authenticity and precision engineering that Traxxas is recognised for across the ready to run RC market.
Key Features
- Steel Disc Construction — The rebuild kit includes a hardened steel disc that provides durability and consistent performance under repeated use, resisting wear and maintaining reliable clutch engagement over extended operating periods.
- Precision Friction Insert — One friction insert is included to provide the proper surface for controlled slippage, engineered to work seamlessly with the steel disc and spring assembly for smooth, predictable clutch operation.
- High-Quality Spring — The included spring maintains proper tension and engagement pressure within the slipper clutch assembly, crucial for consistent performance and preventing accidental disengagement during normal driving.
- 2.5x12mm Dowel Pin — This precision pin ensures correct alignment and secure assembly of the slipper clutch components, preventing misalignment that could lead to premature wear or failure.
- 4.0mm Locknut Included — The M4 locknut secures the assembly and prevents loosening due to vibration during operation, a critical safety feature for maintaining clutch integrity during high-speed RC driving.
- Genuine Traxxas Components — Every part in this rebuild kit is manufactured to Traxxas specifications, ensuring perfect compatibility with your Traxxas RC vehicle and maintaining the performance standards you expect from the brand.
- Complete Rebuild Solution — Rather than replacing the entire slipper clutch assembly, this rebuild kit allows you to replace only the wear items, providing an economical and environmentally responsible maintenance solution.
Technical Performance
The slipper clutch is one of the most important drivetrain components in modern RC cars, and this Traxxas rebuild kit has been engineered with precision to restore your vehicle to like-new condition. The steel disc provides the structural integrity needed to handle repeated engagement and disengagement cycles without deformation, whilst the friction insert is formulated to deliver consistent slip characteristics across a wide range of operating temperatures and load conditions. The spring assembly maintains optimal preload pressure, which is absolutely critical for achieving the correct slip point — too tight and the clutch won't slip when needed, too loose and you'll experience uncontrolled slippage that ruins acceleration response. The 2.5x12mm dowel pin is hardened steel and precisely manufactured to tolerances that ensure repeatable, accurate assembly every time. The 4.0mm locknut is self-locking design that prevents vibration-induced loosening, a common issue that can compromise slipper clutch performance during intense RC racing or aggressive bashing sessions. When properly assembled, this rebuild kit restores full functionality to your slipper clutch system, protecting your motor, gearbox and driveshafts from the catastrophic damage that can result from wheel lockup or sudden deceleration.
What's in the Box
- Steel disc (1 piece)
- Friction insert (1 piece)
- Spring (1 piece)
- 2.5x12mm dowel pin (1 piece)
- 4.0mm locknut (1 piece)
Frequently Asked Questions
- What is a slipper clutch and why does it need rebuilding? — A slipper clutch is a drivetrain component that allows controlled slippage to protect your RC car's motor, gears and transmission from damage during extreme acceleration or when wheels lock up. Over time, the friction insert wears down, the steel disc can become scored, and the spring loses tension, reducing clutch performance. This rebuild kit replaces the wear items to restore original performance specifications.
- How often should I rebuild my slipper clutch? — This depends on your usage intensity. Serious racers might rebuild after every few events, whilst casual RC enthusiasts might only need to rebuild annually or when they notice slippage issues. Regular inspection will help you determine when replacement is necessary.
- Is this suitable for all Traxxas models? — This rebuild kit (TRX7789) is designed for specific Traxxas models that use this slipper clutch assembly. We recommend checking your vehicle's manual or contacting our knowledgeable team to confirm compatibility with your particular RC model before ordering.
- What tools do I need to install this rebuild kit? — You'll need basic RC tools including small wrenches for the 4mm locknut, a screwdriver set, and potentially a small hex wrench set depending on your vehicle's slipper clutch cover fasteners. Most RC enthusiasts already have these in their toolkit.
- Can I use aftermarket friction inserts with this kit? — We strongly recommend using genuine Traxxas components throughout your rebuild kit to ensure optimal performance and compatibility. Mixing genuine and aftermarket parts can lead to unpredictable clutch behaviour and potential drivetrain damage.
- How difficult is it to rebuild a slipper clutch? — Slipper clutch rebuilding is a straightforward maintenance task suitable for intermediate RC hobbyists with basic mechanical experience. If you're new to RC maintenance, we'd recommend watching instructional videos or consulting your vehicle's manual for step-by-step guidance.
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 Rebuild kit, slipper clutch (Steel disc / friction insert (1pc) / spring (1pc) / 2.5x12mm pin / 4.0mm NL (1pc)) TRX7789 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: TRX7789
- Product type: Slipper clutch rebuild kit
- Steel disc: 1 piece
- Friction insert: 1 piece
- Spring: 1 piece
- Dowel pin: 2.5x12mm (1 piece)
- Locknut: 4.0mm (1 piece)
- Part code: 020334778901
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.
