Overview
The Fastrax Arrma Grom/Granite Aluminium Rear Gearbox Cover (FTAR057R) is an essential upgrade component for owners of the popular Arrma 1/18 Granite Grom monster truck range. This precision-engineered aluminium cover is designed to protect your vehicle's rear gearbox assembly whilst enhancing the overall durability and performance of your RC car. Whether you're a weekend basher enjoying casual RC fun or a serious hobbyist looking to upgrade your ready-to-run RC vehicle, this replacement part offers reliable protection for one of the most critical drivetrain components on your truck. The Granite Grom series has become a favourite amongst UK RC enthusiasts for its robust construction and impressive performance characteristics, and upgrading to quality aftermarket components like this aluminium gearbox cover is the perfect way to extend the life of your investment.
This rear gearbox cover is manufactured by Fastrax, a recognised name in the RC upgrade parts industry, and is specifically engineered to fit the Arrma 1/18 scale Granite Grom models. The aluminium construction provides superior strength compared to standard plastic alternatives, offering better impact resistance and improved heat dissipation to keep your gearbox running cooler during extended bashing sessions. If you're looking to enhance the reliability of your RC monster truck UK setup or simply want to replace a damaged cover with a more durable option, this is an excellent choice that demonstrates why upgrading your RC car components is a smart investment in longevity and performance.
Available from RC Model Shop, this Fastrax part number FTAR057R represents excellent value for money at just £8.99, making it an affordable upgrade that any RC enthusiast can justify. As part of the broader Fastrax upgrade range designed for the Arrma Grom and Granite models, this cover works seamlessly with other aftermarket components to create a highly customised and performance-optimised vehicle. Whether you're running your truck on tarmac, grass, or rough terrain, protecting your rear gearbox with this aluminium cover ensures your drivetrain stays protected against dirt, water ingress, and impact damage.
Key Features
- Aluminium Construction — This gearbox cover is manufactured from high-quality aluminium alloy, which provides significantly greater durability and impact resistance compared to standard plastic covers found on stock vehicles. Aluminium also offers better thermal properties, helping to dissipate heat away from the gearbox during intense driving sessions, which extends component life and maintains consistent performance.
- Perfect Fit for Arrma Grom/Granite — Engineered specifically for compatibility with the Arrma 1/18 scale Granite Grom monster truck range, this cover provides a precision fit that requires no modifications or adjustments. This ensures your RC vehicle maintains its factory-level integration whilst benefiting from upgraded component quality.
- Enhanced Protection — The rear gearbox is one of the most critical components in your RC car's drivetrain, and protecting it from dirt, debris, water, and impact is essential for maintaining reliability and performance. This aluminium cover shields your gearbox effectively during all types of driving conditions, from casual backyard bashing to more intense off-road adventures.
- Lightweight Yet Strong — Aluminium offers the perfect balance between weight savings and structural strength, meaning you gain protection without adding unnecessary mass to your RC truck. This helps maintain the vehicle's responsiveness and acceleration characteristics whilst improving durability.
- Easy Installation — Designed as a direct replacement for the stock rear gearbox cover, installation is straightforward and requires no special tools or technical expertise. Most RC enthusiasts can complete the swap in just a few minutes.
- Part of a Complete Upgrade Range — This cover is one of many Fastrax upgrade components available for the Arrma Grom and Granite models, including front and rear suspension arms, steering blocks, and hub carriers. You can gradually build a fully upgraded vehicle by combining multiple Fastrax components.
Technical Performance
The Fastrax Arrma Grom/Granite Aluminium Rear Gearbox Cover is engineered with precision manufacturing standards to ensure perfect fitment and reliable performance. The aluminium material used in its construction provides exceptional strength-to-weight ratio, making it ideal for use on demanding RC applications where durability is paramount. The gearbox cover serves a dual purpose: it protects the internal gearbox components from environmental hazards such as dirt, sand, water, and debris whilst also contributing to the overall structural integrity of the rear differential assembly. When driving your ready-to-run RC monster truck in challenging conditions, the exposed gearbox is vulnerable to damage from impacts and contamination, both of which can lead to premature wear or catastrophic failure. By upgrading to this aluminium alternative, you're investing in a component that will withstand the rigours of regular RC driving far better than standard plastic covers. The thermal properties of aluminium also mean the gearbox runs slightly cooler during extended use, which can help maintain gear mesh accuracy and reduce friction-related wear. For anyone serious about maintaining their Arrma Grom or Granite monster truck in peak condition, this is a cost-effective upgrade that delivers measurable benefits in durability and longevity. The cover is designed to work seamlessly with the stock Arrma drivetrain, requiring no modifications to suspension geometry or gearing, making it an ideal first upgrade for those new to RC customisation.
What's in the Box
- 1 x Fastrax Aluminium Rear Gearbox Cover for Arrma Grom/Granite
Frequently Asked Questions
- Is the Fastrax aluminium rear gearbox cover compatible with my Arrma Grom or Granite monster truck? — Yes, this cover (FTAR057R) is specifically designed for the Arrma 1/18 scale Granite Grom range, including the MEGA 380 brushed 4x4 models in blue, red, and green colour variants. It provides a precision fit without requiring any modifications to your vehicle.
- Why should I upgrade from the stock plastic gearbox cover? — The aluminium construction offers superior strength, impact resistance, and durability compared to plastic. It also dissipates heat more effectively, helping to keep your gearbox cooler during extended driving sessions. This upgrade is particularly beneficial if you frequently bash your RC car or drive in challenging terrain where the gearbox is exposed to impacts and debris.
- Will this cover affect the performance of my RC truck? — No, this is a direct replacement that requires no adjustments or modifications. It maintains the same fitment and functionality as the stock cover whilst providing superior protection. Because aluminium is lightweight, there is negligible impact on weight distribution or handling characteristics.
- How difficult is it to install this gearbox cover? — Installation is very straightforward and requires only basic tools. Simply remove your current cover (typically secured with a few small bolts or screws) and replace it with the Fastrax aluminium version. Most owners complete the installation in under five minutes without specialist knowledge.
- Can I use this cover with other Fastrax upgrade components? — Absolutely. This rear gearbox cover is part of a comprehensive Fastrax upgrade range designed for the Arrma Grom and Granite models, which includes front and rear suspension arms, steering blocks, and hub carriers. You can combine multiple Fastrax components to create a fully upgraded, enhanced version of your stock RC vehicle.
- What makes Fastrax parts reliable for RC upgrades? — Fastrax has established itself as a trusted manufacturer of RC upgrade components, with a focus on precision engineering and material quality. Their parts are designed specifically for compatibility with popular RC models and are built to withstand the demands of regular use in the RC hobby community across the UK and internationally.
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 FASTRAX ARRMA GROM/GRANITE ALUMINIUM REAR GEARBOX COVER FTAR057R 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.
- Brand: Fastrax
- Model Number: FTAR057R
- EAN: 5056135784990
- Product Type: Aluminium Rear Gearbox Cover
- Compatibility: Arrma 1/18 Granite Grom MEGA 380 Brushed 4x4 Monster Truck RTR
- Compatible Models: C-ARA2102T1 (Blue/Red), C-ARA2102T2 (Red), C-ARA2102T3 (Green)
- Material: Aluminium Alloy
- Construction: Single piece gearbox cover assembly
- Colour: Standard finish (compatible with all Granite Grom colour variants)
- Installation: Direct replacement, no modifications required
- Tune-Up Type: Chassis upgrade
- RRP: £8.99
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.
