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ARRMA Assembled Differential 30T 0.8Mod V2 for GROM RC Car Z-ARA311177V2

Model No: Z-ARA311177V2


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  • Model Number: Z-ARA311177V2
  • EAN: 5052127050128
  • Manufacturer: ARRMA
  • Part Type: Drivetrain Spares
  • Component Type: Assembled Differential
  • Gear Specification: 30T
  • Module: 0.8Mod
  • Version: V2
  • Internal Gears: Steel construction
  • Pins: Steel construction
  • Includes: Precision bearings
  • Lubrication: Pre-filled with grease
  • Assembly Status: Factory assembled and ready to install
  • Application: Front or rear differential for GROM models
  • Compatible Vehicles: GROM range including Granite GROM, Mojave GROM, Typhon GROM and variants across 1/18 and 1/16 scales
  • Quantity: 1 x Assembled Differential

Overview

The ARRMA Assembled Differential 30T 0.8Mod V2 (1): GROM is a factory-assembled replacement differential unit designed specifically for the ARRMA GROM range of 1/18 and 1/16 scale RC cars. Whether you're maintaining your Granite GROM, Mojave GROM, or Typhon GROM, this pre-assembled drivetrain component offers a quick and efficient servicing solution for both front and rear differential applications. Built with durability and performance in mind, this differential unit comes ready to install, making it an essential spare part for RC enthusiasts across the UK who demand reliability from their RC car spares.

This differential represents ARRMA's commitment to providing quality replacement parts that keep your RC vehicle running at peak performance. The V2 designation indicates this is an updated version featuring improved internal specifications and construction. Whether you're a weekend basher enjoying casual off-road adventures or a dedicated RC hobbyist pushing your GROM to its limits, having a spare differential assembly on hand ensures minimal downtime and maximum enjoyment from your RC experience.

Available from RC Model Shop, a trusted UK RC car retailer, this part is in stock and ready for immediate dispatch. It's the kind of reliable spare component that separates serious RC car owners from casual users, allowing you to keep your GROM performing at its best for years to come.

Key Features

  • Factory Assembled and Pre-Filled with Grease — This differential arrives fully assembled from the factory and already filled with grease, eliminating the need for time-consuming assembly or lubrication before fitting to your vehicle. This saves you valuable setup time and ensures proper lubrication from the moment you install it, allowing you to get straight back to driving your RC car without delay.
  • Tough Steel Internal Gears and Pins — The internal drivetrain components are constructed from hardened steel, providing exceptional durability and longevity under demanding driving conditions. Steel gears resist wear and degradation far better than alternative materials, ensuring your differential maintains smooth operation through countless hours of bashing, racing, or competitive use across all terrain types.
  • Includes Precision Bearings — The differential assembly comes complete with all necessary bearings for a fast and efficient installation to your vehicle. These precision-fitted bearings ensure smooth rotation, minimal friction, and proper alignment, contributing to optimal performance and reducing the likelihood of premature wear or mechanical failure.
  • Front or Rear Compatibility — This single assembly can be used as either a front or rear differential replacement, offering flexibility and versatility in your spare parts inventory. Rather than purchasing separate front and rear units, this multi-purpose component means you're covered for most differential-related servicing needs across your GROM fleet.
  • 30T Gear Configuration with 0.8 Module — The 30-tooth gear specification with 0.8 module sizing ensures optimal meshing characteristics and power transmission through your GROM's drivetrain. This configuration has been engineered by ARRMA to deliver the perfect balance of acceleration, top speed capability, and mechanical efficiency for the GROM's performance envelope.

Technical Performance

The ARRMA Assembled Differential 30T 0.8Mod V2 represents a significant advancement in small-scale RC car drivetrain engineering. The 30-tooth, 0.8 module specification is precisely calibrated for the GROM platform's weight distribution, motor output, and intended performance characteristics. By utilising steel construction for all internal gears and pins, ARRMA has engineered a differential that can withstand the rigorous demands of both casual bashing and competitive racing without compromising on reliability or performance. The V2 iteration incorporates refinements over previous versions, demonstrating ARRMA's ongoing commitment to improving their spare parts portfolio based on real-world user feedback and performance data. The inclusion of factory-installed bearings means the differential arrives in a ready-to-fit condition, reducing assembly time and eliminating the potential for installation error. The pre-filled grease specification ensures optimal gear lubrication from the instant the differential begins rotating, which is critical for long-term durability and smooth power transmission. This is the kind of precision engineering that UK RC car enthusiasts have come to expect from ARRMA, particularly given their track record of producing reliable, high-performance small-scale vehicles and replacement components.

What's in the Box

  • 1 x Assembled Differential - 30T 0.8Mod, suitable for front or rear installation
  • Complete with factory-installed bearings
  • Pre-filled with quality grease

Frequently Asked Questions

  • Is the ARRMA Assembled Differential 30T 0.8Mod V2 compatible with all GROM models? — Yes, this differential is specifically designed for the GROM range and is compatible with multiple GROM variants including the Granite GROM, Mojave GROM, and Typhon GROM across both 1/18 and 1/16 scales. It can function as either a front or rear differential, making it highly versatile for most GROM servicing requirements.
  • Why would I need a replacement differential for my GROM? — Over time and with regular use, differential gears and bearings experience wear from friction and the constant transmission of power from the motor to the wheels. A worn differential can result in reduced efficiency, noisy operation, or even mechanical failure. Having a spare factory-assembled differential allows you to quickly swap out a worn unit without the downtime associated with rebuilding or servicing an existing differential.
  • How does the steel gear construction improve durability? — Steel is significantly harder and more resilient than composite or plastic alternatives, resisting wear, stripping of teeth, and deformation under load. This means your GROM's drivetrain will maintain its mechanical precision and efficiency for longer, particularly important if you enjoy aggressive driving or competitive racing where durability directly impacts performance and reliability.
  • What is the difference between the V2 and previous versions of this differential? — The V2 designation indicates this is an updated version incorporating refinements and improvements over earlier iterations. Without specific technical documentation detailing the differences, the most reliable approach is to contact RC Model Shop's expert team, who can provide detailed insight into the specific enhancements incorporated into the V2 version.
  • Do I need any special tools to install this differential? — As this is a pre-assembled, bearing-equipped unit with integrated components, installation should require only basic RC model maintenance tools such as small screwdrivers and hex wrenches. Specific installation procedures are best found in your GROM's official manual or on ARRMA's support documentation.
  • Can this differential be serviced or rebuilt? — ARRMA designs this as an assembled unit, and servicing would typically involve disassembly. For most UK RC car owners, the cost-effectiveness and time savings of replacing the entire assembly far outweigh the benefits of attempting to service an existing unit.

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 Assembled Differential 30T 0.8Mod V2 (1): GROM Z-ARA311177V2 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.