Overview
The ARRMA CVD Differential Outdrives (2): 4x4 Mega BLX represent a premium transmission upgrade for serious RC enthusiasts running 1/10 scale 4WD vehicles. These ultra-reliable differential outdrives are engineered to deliver superior performance and durability across all terrains, making them an essential spare part for anyone pushing their RC car UK to its limits. Whether you're bashing on rough ground, competing in off-road races, or exploring challenging landscapes, these CVD outdrives provide the dependable power transfer your Mega BLX platform demands.
Designed specifically for ARRMA's 4x4 Mega BLX platform, these precision-manufactured components replace the standard differential outdrives with heavy-duty alternatives that can handle the punishment of aggressive driving. If you're looking to upgrade your ready-to-run RC truck or buggy with more resilient transmission components, this two-pack gives you the exact spares needed to keep your vehicle performing at peak efficiency. The combination of super-tough steel construction and advanced manufacturing techniques ensures consistent performance whether you're a weekend basher or a dedicated RC racer.
These CVD diff outdrives are ideal for anyone who demands reliability from their RC equipment. UK-based RC enthusiasts will appreciate having quality spare transmission parts readily available, and the smooth, friction-free operation means your brushless motor power is transmitted efficiently to the wheels without unnecessary energy loss.
Key Features
- Super-tough steel construction — The outdrives are manufactured from premium steel that withstands extreme stress and repeated impacts, ensuring hard-wearing durability that maintains consistent performance across all terrains without premature wear or failure.
- Precision-manufactured components — Each outdrive is engineered to exacting tolerances, providing a smooth and friction-free axle operation in all conditions, which means cleaner power delivery and more responsive handling from your RC vehicle.
- Molded composite inserts — The integrated composite inserts add a layer of durability and compliance, protecting against shock loads whilst maintaining structural integrity during aggressive driving or high-speed operation.
- Two-piece set with hardware — This package includes 2 CVD differential outdrives plus 2 M4x4mm set screws, giving you everything needed for a complete differential upgrade on your 4x4 Mega BLX platform.
- Friction-free operation — The precision-manufactured design eliminates binding and unnecessary friction, allowing smoother engagement and disengagement of the differential function, which improves overall vehicle agility and cornering performance.
Technical Performance
These CVD differential outdrives represent a significant engineering achievement in terms of transmission reliability for 1/10 scale RC vehicles. The construction uses super-tough steel throughout, selected specifically for its ability to handle the continuous torque delivery from brushless motors whilst resisting the impact loads encountered during off-road driving. The precision manufacturing process ensures that each component maintains exact specifications, which is critical for smooth operation—any deviation in dimensions can create friction and wear patterns that degrade performance over time. The molded composite inserts serve a dual purpose: they absorb shock loads that might otherwise crack or damage the steel components, and they provide a degree of give that helps the differentials engage more smoothly during directional changes. This is particularly important for 4WD vehicles where the front and rear differentials must work in perfect harmony to deliver traction without binding on corners. The friction-free axle operation means that the power generated by your brushless motor reaches the wheels with minimal losses, resulting in more responsive acceleration and better overall efficiency. When used as a spare part for the ARRMA #AR310870 system, these outdrives restore your transmission to factory specifications or allow you to maintain a backup set for competition use or emergency replacement during intensive driving sessions.
What's in the Box
- 2 x CVD Differential Outdrive
- 2 x M4x4mm Set Screw
Frequently Asked Questions
- What ARRMA models are these CVD differential outdrives compatible with? — These outdrives are designed as a spare part for ARRMA #AR310870 and are compatible with numerous 1/10 scale 4WD models including the Big Rock 223S, Big Rock 3S, Granite 223S, Granite 3S, Senton 223S, Senton 3S, and Vorteks 223S variants, as well as the 1/8 scale Typhon Mega 665. Check your specific model number to confirm compatibility before ordering.
- Are these suitable for beginners or experienced drivers only? — While these are quality spare parts, they are best suited for users with some RC experience who understand how to maintain and replace transmission components. Beginners should focus on learning basic driving and maintenance before attempting upgrades. However, if your existing outdrives have failed, these replacements will restore your vehicle to proper working order regardless of experience level.
- How do I know when my CVD differential outdrives need replacement? — Signs of wear include grinding noises from the transmission, loss of traction, or visible damage to the outdrive shafts. If you've had a significant crash or impact to the drivetrain, inspect these components closely. Having a spare set on hand, like this two-pack, means you can quickly restore your vehicle to action without waiting for parts.
- What is the difference between these CVD outdrives and standard outdrives? — CVD stands for Constant Velocity Differential, which is a design that maintains consistent power delivery across a wider range of motion than traditional open differentials. These precision-manufactured versions ensure smooth, friction-free operation, making them more reliable for aggressive driving compared to standard components.
- Do I need any special tools to install these outdrives? — These outdrives are designed as direct replacements for ARRMA #AR310870 systems. You will need basic RC tools including a screwdriver set and possibly some Allen keys, but no specialised equipment is required for installation. The M4x4mm set screws are included to secure the components in place.
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 ARRMA CVD Differential Outdrives (2): 4x4 Mega BLX 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.
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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