Overview
The ARRMA F/R Composite Upper Gearbox Covers and Shock Tower is an essential replacement part for RC enthusiasts looking to maintain or upgrade their ARRMA vehicles. Whether you're a dedicated RC car UK hobbyist, a weekend basher, or someone who takes their brushless RC truck seriously, these composite covers provide the durability and precision engineering that ARRMA is recognised for. These are high-quality replacement parts that are manufactured to the same exacting standards as the original equipment supplied with ARRMA kits, ensuring seamless compatibility and performance.
Composite materials have become the gold standard in RC car construction because they offer the perfect balance between weight, durability, and cost-effectiveness. These front and rear upper gearbox covers integrate multiple functions into a single engineered component, combining the gearbox cover, shock tower, body post mount, upper inner suspension mount, and steering brace all in one assembly. This integrated design not only simplifies servicing and replacement but also ensures structural integrity across your RC model's chassis. If your original covers have become damaged through aggressive off-road use, or if you're building a custom setup, these ARRMA composite covers are the perfect solution to keep your RC truck or buggy running smoothly.
The precision manufacturing that goes into each cover ensures consistent fit and easy servicing, meaning you won't struggle with misaligned parts or poor fitment when installing these replacements. ARRMA's commitment to quality means these covers will withstand the demands of serious RC driving, whether you're tackling rocky terrain, sandy tracks, or pushing your ready to run RC to its limits on grass or tarmac.
Key Features
- Tough Composite Material — The covers are constructed from tough composite material that is engineered to provide long-lasting durability under the stresses of RC driving, meaning they won't crack, warp, or degrade quickly like inferior alternatives.
- Precision Manufacturing — Each cover is precision manufactured to exact tolerances, ensuring consistent fit across every unit and making installation and removal straightforward during maintenance or repairs.
- Integrated Multi-Function Design — Rather than being simple covers, these components integrate the gearbox cover, shock tower, body post mount, upper inner suspension mount, and steering brace into a single engineered assembly, which simplifies your chassis construction and improves overall rigidity.
- High Specification Shock Towers — The integrated shock towers meet ARRMA's exacting high specifications, meaning they'll provide reliable support for your suspension system and help maintain proper shock geometry during dynamic driving.
- Easy Servicing — The precision fit means you can access your gearbox and suspension components easily for maintenance, cleaning, and repair without struggling with poor fitment or misalignment.
- Front and Rear Coverage — This kit includes both front and rear upper gearbox covers, providing complete protection and structural support for your entire RC model's drivetrain and suspension system.
Technical Performance
The composite construction of these gearbox covers and shock towers represents a significant engineering achievement in the RC world. Composite materials, typically engineered thermoplastic or thermoset polymers reinforced with fibres, offer exceptional strength-to-weight ratios that help keep your RC truck or buggy as light as possible without compromising durability. The precision manufacturing process ensures that each component meets exact dimensional specifications, which is critical for proper alignment of your gearbox, shock towers, and suspension geometry. The integrated design — combining the gearbox cover, shock tower, body post mount, upper inner suspension mount, and steering brace in a single assembly — reduces the number of connection points that might otherwise flex or wear out during aggressive driving. This structural integration means forces are distributed more evenly across the chassis, improving handling characteristics and reducing the likelihood of component failure. The high specification shock towers ensure that your suspension system maintains proper geometry under load, which is essential for maintaining consistent handling and traction whether you're running a ready to run brushless RC monster truck, a lightweight RC buggy, or any other ARRMA model. The durability of these composite covers means they'll withstand repeated impacts, abrasion from rough terrain, and the stresses of high-speed driving without requiring frequent replacement.
What's in the Box
- 1 x Front Gearbox Upper Cover
- 1 x Rear Gearbox Upper Cover
Frequently Asked Questions
- What ARRMA models are these gearbox covers compatible with? — These F/R Composite Upper Gearbox Covers and Shock Towers are compatible with the ARRMA 1/8 MOJAVE 4X4 4S BLX Desert Truck RTR, available in both Blue and White colour options. They are also standard parts for the 1/10 KRATON 4S 4X4 RTR Brushless Speed Truck and the 1/10 OUTCAST 4S 4X4 RTR Brushless Stunt Truck.
- Are these suitable for replacing damaged covers on my brushless RC truck? — Yes, these are genuine replacement parts designed to restore your ARRMA RC model to original specification. If your covers have been cracked, broken, or worn down through aggressive driving, these precision-manufactured composites will fit exactly like the original equipment and restore full functionality to your gearbox and shock tower assemblies.
- Why would I need to replace my gearbox covers? — Gearbox covers and shock towers can become damaged through impacts, crashes, or normal wear and tear during RC driving. Damaged covers can allow dirt and debris to contaminate your gearbox, potentially causing premature wear or failure of your transmission. Additionally, damaged shock towers can affect suspension alignment and handling. These replacement covers ensure your drivetrain remains protected and your suspension geometry stays true.
- How do these compare to upgrading to carbon fibre covers? — While carbon fibre options may be available for some ARRMA models, these ARRMA composite covers offer excellent durability and are designed specifically as original equipment replacement parts. They represent the perfect balance of strength, cost, and compatibility. The composite material provides more than adequate strength for almost all RC driving applications.
- Will these fit my existing ARRMA truck without modification? — Yes, the precision manufacturing ensures these covers fit exactly as the original parts do. No modification, drilling, or adjustment should be necessary for installation on compatible ARRMA models.
- Is this a genuine ARRMA part? — Yes, this is an official ARRMA replacement part, manufactured to the same exacting standards as the components supplied with new ARRMA kits.
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 F/R Composite Upper Gearbox Covers/Shock Tower Z-ARA320735 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.
- 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.
