Overview
The ARRMA Diff Set (42T 1.0M) Z-ARA310955 is an essential upgrade and replacement component for RC enthusiasts looking to maintain or enhance their ARRMA RC car performance. Whether you're a seasoned RC competitor, a weekend basher enjoying high-speed runs across the UK, or someone discovering the world of RC for the first time, having the correct differential assembly is crucial to your vehicle's handling characteristics and durability. This genuine ARRMA differential set represents quality engineering and reliability that ARRMA is recognised for throughout the RC community.
Differentials are one of the most important mechanical components in any RC car, working to distribute power between the drive wheels while allowing them to rotate at different speeds during cornering and turning. The ARRMA Diff Set with its 42-tooth gear configuration and 1.0 modulus specifications is designed to provide smooth power delivery and consistent performance across a wide range of driving conditions. Whether you need a replacement due to wear and tear, or you're upgrading your RC car UK setup for improved performance, this differential set delivers the precision engineering you expect from ARRMA.
This differential assembly is manufactured to exacting standards and comes complete as a ready-to-install set, making it straightforward for RC enthusiasts to fit and get back to enjoying their RC experience. The 42T gear size combined with the 1.0M specification ensures compatibility with specific ARRMA models whilst providing the torque characteristics needed for responsive handling and acceleration.
Key Features
- 42-Tooth Gear Configuration — The 42-tooth setup provides an optimal balance between acceleration and top speed, ensuring your RC car delivers punchy throttle response whilst maintaining reasonable top-end velocity across various driving surfaces and conditions.
- 1.0 Modulus Rating — The 1.0M specification refers to the gear pitch and tooth profile, which ensures precise meshing with mating gears in your differential assembly for smooth, reliable power transmission without noise or slippage.
- Genuine ARRMA Component — Being an authentic ARRMA part means this differential set is manufactured to the exact specifications of your RC vehicle, guaranteeing fitment and performance that matches the original factory design and engineering standards.
- Complete Differential Assembly — This set includes all the necessary components to replace or upgrade your differential assembly, eliminating the need to source multiple individual parts and saving you time during maintenance or repair work.
- Enhanced Performance and Handling — A quality differential directly impacts how your RC car handles during turns, acceleration and braking, and this ARRMA set ensures smooth, predictable power delivery to the drive wheels for improved drivability and control.
Technical Performance
The ARRMA Diff Set (42T 1.0M) represents precision engineering for RC car enthusiasts who demand reliability and consistent performance. The 42-tooth gear configuration with 1.0 modulus specifications provides the mechanical advantage needed for controlled acceleration and manageable top speeds across various driving scenarios. In the context of RC car UK applications, this differential set is engineered to handle the demands of both casual weekend bashing and more competitive driving scenarios. The modulus rating of 1.0M indicates a specific tooth pitch that ensures clean engagement with your vehicle's drive gears, minimising backlash and noise whilst maximising power transfer efficiency. ARRMA's commitment to build quality means this differential assembly is manufactured from durable materials capable of withstanding the stresses of high-performance RC driving. The precise engineering of the 42T configuration means you'll experience predictable throttle response and smooth cornering characteristics, whether you're driving on tarmac, grass, gravel or more demanding terrains. This component is essential for maintaining your ARRMA RC car's performance envelope and ensuring your vehicle responds predictably to your inputs across the entire range of driving conditions.
What's in the Box
- ARRMA Diff Set (42T 1.0M) — Complete differential assembly ready for installation
Frequently Asked Questions
- What is a differential and why does my RC car need one? — A differential is a mechanical component that distributes engine power between the drive wheels whilst allowing them to rotate at different speeds, which is essential during cornering and turning. Without a functioning differential, your RC car would experience binding, poor handling and difficulty turning smoothly. The ARRMA Diff Set ensures your vehicle maintains optimal performance and drivability.
- What does the 42T specification mean? — The 42T refers to the number of teeth on the main gear in the differential assembly. This 42-tooth configuration is a specific sizing that provides the correct gear ratio for your ARRMA model, balancing acceleration and top speed characteristics. Different ARRMA models may require different tooth counts, so it's essential to verify you're ordering the correct specification for your vehicle.
- What is the 1.0M modulus specification? — Modulus (M) refers to the pitch and tooth profile of the gears. The 1.0M specification indicates a specific tooth size and shape that ensures perfect meshing with the corresponding gears in your RC car's drivetrain. This precise specification is critical for smooth operation, reduced noise and maximum power transfer efficiency.
- Is this suitable for beginners? — Whilst this is a genuine ARRMA component, differential replacement and installation requires intermediate mechanical knowledge and appropriate tools. If you're new to RC car maintenance, we recommend consulting your vehicle's manual or seeking guidance from experienced RC enthusiasts. However, once fitted, this differential will provide reliable performance for drivers of all skill levels.
- What ARRMA models is this compatible with? — The Z-ARA310955 model number specifies this differential set for particular ARRMA vehicles. We recommend checking your vehicle's manual or contacting our RC Model Shop team to confirm compatibility with your specific ARRMA model before purchasing.
- When should I replace my differential? — You should consider replacing your differential if you notice grinding noises, difficulty turning smoothly, loss of traction during acceleration, or visible damage to the gears. Regular maintenance and inspection of your differential helps extend its lifespan and ensures optimal RC car performance.
- Will upgrading to this differential improve my RC car's performance? — If your current differential is worn or damaged, upgrading to this genuine ARRMA Diff Set will restore your vehicle to factory performance specifications. If your current differential is functioning normally, you'll experience the reliable, predictable handling that ARRMA engineering provides.
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. 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 Diff Set (42T 1.0M) Z-ARA310955 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 — 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.
- 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.
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- 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.
