Overview
The Traxxas Ring Differential / Pinion Gear Differential (Rear) TRX8977 is an essential drivetrain component for RC enthusiasts who demand reliability and performance from their high-powered RC vehicles. This rear differential assembly is specifically engineered to handle the demands of serious bashers and competitive racers using modern brushless RC technology. Whether you're pushing a Traxxas Maxx Slash short course truck or a WideMaxx monster truck to its limits, this differential plays a critical role in translating engine power to the wheels with precision and durability. For anyone serious about RC car performance in the UK, understanding and maintaining quality drivetrain components like this differential is essential for consistent on-track or off-track performance.
Built to Traxxas's exacting standards, this rear differential ring and pinion gear assembly is designed for maximum durability and optimal power transfer. The precision-engineered gears work together to distribute torque evenly to both rear wheels whilst allowing them to rotate at different speeds during cornering—a fundamental requirement for stable, predictable handling in any RC vehicle. This is the genuine OEM replacement part, ensuring perfect compatibility with your Traxxas model and maintaining the exact performance characteristics your vehicle was engineered to deliver. Whether you're a weekend basher exploring the thrills of RC driving in the UK or a dedicated racer fine-tuning every aspect of your setup, having quality spare parts like this on hand ensures minimal downtime and maximum enjoyment.
RC enthusiasts who have experienced differential wear or damage know how critical it is to replace this component with genuine manufacturer parts. Counterfeit or inferior alternatives can lead to power loss, handling unpredictability, and accelerated wear of related drivetrain components. The Traxxas TRX8977 is the factory-standard solution trusted by countless RC drivers across the UK and worldwide, offering peace of mind that your vehicle will perform exactly as intended.
Key Features
- Factory OEM Traxxas Design — This is the genuine original equipment manufacturer part specified by Traxxas for rear differential assembly, ensuring absolute compatibility and performance matching with your vehicle's original engineering specifications and design intent.
- Precision Ring and Pinion Gears — The assembly combines a precision-cut ring gear with a matching pinion gear, engineered to work together for optimal torque distribution and smooth power delivery to the rear wheels of your RC truck or monster truck.
- Differential Function — The differential mechanism allows the rear wheels to rotate at different speeds during cornering whilst maintaining equal torque delivery during straight-line acceleration, which is essential for stable handling and traction control in any RC vehicle.
- Compatible with Multiple Traxxas Models — This rear differential fits a range of high-performance Traxxas models including the Maxx Slash 1/8 4WD brushless short course truck in multiple colour variants and the WideMaxx monster truck series, making it a versatile replacement or upgrade component.
- Durable Construction — Built from quality materials engineered to withstand the stresses of brushless RC driving and the extreme forces generated by modern high-power lithium polymer batteries, ensuring longevity even in demanding driving conditions.
- Direct Replacement Part — As a manufacturer-specified spare part, installation is straightforward for anyone with basic RC maintenance knowledge, requiring no modifications or additional components to achieve perfect fit and function.
Technical Performance
The Traxxas Ring Differential / Pinion Gear Differential (Rear) TRX8977 represents the engineering excellence Traxxas is renowned for in the RC hobby space. This drivetrain component is manufactured to exacting tolerances, ensuring that the ring and pinion gears mesh perfectly for smooth, quiet operation and maximum efficiency in power transmission. The precision machining and quality materials used in this assembly ensure it can handle the tremendous forces generated by brushless motors driving modern 6S LiPo batteries in vehicles like the Maxx Slash and WideMaxx platforms. The differential assembly's design provides equal torque distribution to both rear wheels during acceleration whilst allowing the outer wheel to rotate faster than the inner wheel during turns—a fundamental engineering principle that ensures your RC vehicle handles predictably and maintains optimal traction through corners. UK RC enthusiasts who push their vehicles hard in competitive racing or aggressive bashing will appreciate how this component maintains consistent performance across numerous drive cycles. The gears are designed to work with Traxxas's transmission system and are engineered to interface perfectly with the vehicle's drivetrain, eliminating vibration and power loss that can occur with inferior aftermarket alternatives. Whether you're running your vehicle on tarmac, dirt, or mixed terrain, this differential assembly provides the reliability and performance you expect from genuine Traxxas parts.
What's in the Box
- Rear differential ring gear
- Rear differential pinion gear
Frequently Asked Questions
- Which Traxxas models is the TRX8977 rear differential compatible with? — The Traxxas Ring Differential / Pinion Gear Differential (Rear) TRX8977 is specifically designed for the Traxxas Maxx Slash 1/8 4WD brushless short course truck, available in Rock N Roll, Blue, Red, and Green colour variants, as well as the Traxxas WideMaxx monster truck series in Rock N Roll, Green, and Red finishes. If you're unsure whether this part fits your specific vehicle, we recommend contacting our expert team at RC Model Shop before purchasing.
- How do I know if my differential needs replacing? — Signs that your rear differential may need replacement include difficulty in turning corners smoothly, unusual grinding or clicking noises from the rear axle area, reduced traction during acceleration, or visible wear or damage to the gears during routine maintenance inspections. If you've experienced a crash or impact to the rear axle area, it's worth inspecting the differential for damage.
- Is this a complete differential assembly or just the gears? — The TRX8977 includes the ring gear and pinion gear components that make up the rear differential assembly. Depending on your vehicle's condition, you may need additional differential housing components, but this part provides the essential gear set for differential function.
- Why choose the genuine Traxxas part over cheaper alternatives? — Genuine Traxxas parts are engineered to exact specifications and manufactured to strict quality standards, ensuring perfect compatibility, optimal performance, and longevity. Inferior aftermarket alternatives may fit loosely, produce noise, cause power loss, or fail prematurely, leading to additional costs and downtime. Choosing the genuine part protects your investment in your RC vehicle and maintains the performance characteristics your vehicle was designed to deliver.
- Can I install this myself? — Differential replacement requires some mechanical knowledge and appropriate tools, but is achievable for RC enthusiasts with basic maintenance experience. If you're unfamiliar with RC vehicle maintenance, we recommend consulting the Traxxas manual for your specific model or seeking assistance from our expert team at RC Model Shop to ensure proper installation.
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 Ring Differential / Pinion Gear Differential (Rear) TRX8977 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.
- Part Number: TRX8977
- Brand: Traxxas
- Product Type: Rear Differential Ring and Pinion Gears
- Spare Part Category: Drivetrain Spares
- EAN Code: 020334897701
- Compatible Vehicles: Traxxas Maxx Slash 1/8 4WD 6S Brushless Short Course Truck (Rock N Roll, Blue, Red, Green variants), Traxxas WideMaxx Monster Truck (Rock N Roll, Green, Red variants)
- Application: Rear differential assembly
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.
