Overview
The Traxxas Spider gear shaft and spider bushing set (TRX8584) is an essential drivetrain maintenance and upgrade component for owners of the Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck. Whether you're a dedicated RC enthusiast in the UK looking to maintain your high-performance RC truck or someone seeking replacement parts after intensive bashing sessions, this genuine Traxxas spare part delivers the quality and reliability you expect from the world's leading RC manufacturer. These components are crucial to the smooth operation of your vehicle's differential system, ensuring optimal power delivery and handling characteristics across all terrain types.
The spider gear shaft and bushing assembly represents the heart of your UDR's differential mechanism. The two spider gear shafts work in conjunction with the four spider bushings to distribute engine torque evenly between the left and right wheels whilst allowing them to rotate at different speeds during cornering. This is fundamental to the performance and longevity of your RC car, making it one of the most important systems to maintain. When these components wear, performance deteriorates and potential damage to other drivetrain components can occur. By choosing genuine Traxxas parts, you're investing in the authentic engineering that makes the UDR one of the most capable ready-to-run RC trucks available today.
RC Model Shop stocks this premium spare part for the serious RC enthusiast who demands nothing but the best for their vehicle. Whether you're preparing for competition, undertaking preventative maintenance, or recovering from a hard day's racing, this Traxxas TRX8584 spider gear shaft and bushing set ensures your UDR performs at its absolute peak.
Key Features
- Two Spider Gear Shafts — The pair of precision-engineered shafts form the central axis of your differential assembly, transmitting rotational force from the main gear to the spider gears whilst maintaining perfect concentricity and balance for smooth operation at high speeds.
- Four Spider Bushings — These four bushings provide low-friction bearing surfaces for the spider gears, allowing them to rotate smoothly around the shafts whilst maintaining precise alignment and minimising wear that could affect differential function.
- Genuine Traxxas Engineering — Manufactured to exact OEM specifications by Traxxas, these components ensure perfect compatibility with your UDR and deliver the same durability and performance as the original factory parts fitted to your truck.
- Essential Maintenance Component — Regular inspection and replacement of worn spider gear shafts and bushings is critical to maintaining differential performance and preventing catastrophic drivetrain failure during high-intensity driving.
- Compatible with UDR Models — This set is specifically engineered for the Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck, including both the Fox Racing and Rigid Industries variants, ensuring perfect fit and performance.
- Affordable Maintenance Solution — Replacing these components is significantly more cost-effective than repairing secondary damage caused by worn differential parts, making preventative maintenance a smart investment for any serious RC enthusiast.
Technical Performance
The spider gear shaft and bushing assembly represents precision engineering at its finest. Manufactured from high-quality materials selected for durability, wear resistance, and consistent performance, these components are engineered to handle the extreme stresses placed on them during high-speed desert racing, rock crawling, and intense bashing sessions. The shafts themselves are precisely machined to tight tolerances, ensuring they seat perfectly within the differential housing and rotate with minimal runout. The four bushings are manufactured from a specialised low-friction material that reduces drag on the spider gears whilst maintaining structural integrity even under the enormous lateral loads encountered when cornering at speed or navigating technical terrain. The combination of these components working in harmony ensures that your UDR's differential operates smoothly and efficiently, distributing power evenly to both drive wheels and allowing the differential action necessary for precise cornering. In the demanding world of RC car racing and high-performance driving, where every fraction of a second and every ounce of traction matters, maintaining these critical components in pristine condition is absolutely essential. The engineering standards applied to these spare parts match those of the complete vehicle, reflecting Traxxas's commitment to quality throughout their product range.
What's in the Box
- Spider gear shaft — 2 pieces
- Spider bushing — 4 pieces
Frequently Asked Questions
- Is this TRX8584 suitable for my Traxxas UDR? — Yes, this spider gear shaft and bushing set is specifically designed for the Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck. It is compatible with both the Fox Racing (TRX85086-4-FOX1) and Rigid Industries (TRX85086-4-RGD1) variants of the UDR, making it the correct replacement for either model.
- How often should I replace the spider gear shafts and bushings? — The frequency of replacement depends on your driving intensity and maintenance practices. For weekend bashers, inspection every few months and replacement annually is recommended. For competitive racers or those engaging in intensive driving, more frequent inspection and replacement may be necessary. Always inspect these components during regular maintenance — if you notice play in the differential, grinding sounds, or reduced handling precision, it's time to replace them.
- What symptoms indicate that my spider gears need replacement? — Common warning signs include a notchy or grinding feeling when turning, excessive play or movement in the differential, uneven traction between left and right wheels, or a clicking sound coming from the differential housing. Any of these symptoms suggests that the spider gears, shafts, or bushings may be worn and require replacement to prevent further damage.
- Do I need any special tools to install these components? — Installation of the spider gear shaft and bushing set requires disassembly of the differential housing, which is a moderately advanced task. You'll need standard RC tools including screwdrivers, hex keys, and possibly a differential puller depending on your specific UDR variant. Many RC enthusiasts choose to have their local hobby shop perform this maintenance to ensure perfect installation.
- What is the difference between genuine Traxxas parts and aftermarket alternatives? — Genuine Traxxas parts are manufactured to exact OEM specifications and undergo rigorous quality control testing. They're engineered to work perfectly with your vehicle's other components and are backed by Traxxas's reputation for quality. Aftermarket alternatives may offer cost savings but could involve compromises in material quality, precision tolerances, or durability. For critical drivetrain components like differential parts, genuine OEM components are strongly recommended.
- How do I know when to perform preventative maintenance on the differential? — Regular maintenance intervals for RC vehicles depend on usage. High-intensity users should inspect their differential every 2-3 months, whilst casual users can inspect every 6 months. Signs that inspection is overdue include any notching or grinding in the differential, difficulty turning, or visible dirt or water ingress into the differential housing.
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 Spider gear shaft (2 pcs) / spider bushing (4 pcs) TRX8584 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.
- Manufacturer: Traxxas
- Part Number: TRX8584
- EAN: 20334858405
- Spare Part Type: Drivetrain Spares
- Component: Spider Gear Shaft
- Quantity of Shafts: 2 pieces
- Component: Spider Bushing
- Quantity of Bushings: 4 pieces
- Compatible Vehicle: Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck (Fox Racing variant TRX85086-4-FOX1)
- Compatible Vehicle: Traxxas UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck (Rigid Industries variant TRX85086-4-RGD1)
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.
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