- Capacity: 2700 mAh
- Connectors: BEC
- Voltage: 11.1 V
- Weight: 147 g
- Height: 24 mm
- Length: 92 mm
- Width: 29 mm
- Supplier Id: B-TX-2700-3S1P
The Arrma ARA310981 steel diff outdrive EXB is a precision-engineered drivetrain component designed to deliver smooth differential action and long-term durability in high-performance RC applications. Manufactured from tough black steel and supplied as a matched pair, these outdrives are built to withstand the rigours of extreme RC driving. Their compatibility with 29cm diff cases ensures seamless integration into Arrma vehicles, while the precision-machined construction guarantees an accurate fit that supports leak-free operation. Whether you're upgrading worn components or building a drivetrain from scratch, the Arrma ARA310981 RC drivetrain outdrive pair offers the reliability and performance serious RC enthusiasts demand.
Key features of the Arrma ARA310981 steel diff outdrive EXB
- Steel construction – engineered for long-lasting durability under high-load RC conditions
- Precision machined – ensures accurate fitment and smooth differential operation
- Leak-free interface – designed to maintain sealed diff performance
- 29mm case compatibility – integrates seamlessly with Arrma 29mm differential housings
- Supplied as a pair – ready for immediate installation into compatible drivetrain systems
The diff outdrive ARA310981 Arrma steel build with leak-free fitment is crafted from high-strength steel to deliver exceptional resistance to wear and deformation. This material choice ensures that the outdrives maintain their structural integrity even under the intense torque loads generated during competitive RC driving. The black finish not only enhances the visual appeal of the drivetrain but also adds a layer of corrosion resistance, helping to extend the service life of the components in varied environmental conditions.
How does precision machining improve differential performance?
The outdrive ARA310981 Arrma precision machined for smooth differential action benefits from exacting manufacturing standards that ensure each unit fits perfectly within the differential assembly. This precision fitment reduces internal friction and prevents fluid leakage, which are critical for maintaining consistent differential behaviour. By supporting smooth gear engagement and minimising mechanical resistance, these outdrives contribute to improved handling and responsiveness during high-speed manoeuvres.
Why is 29mm diff case compatibility important for RC builders?
The drivetrain outdrive ARA310981 Arrma compatible with 29mm diff case is specifically designed to work with Arrma’s 29mm differential housings, including models ARA310983 and ARA311061. This compatibility ensures that users can install the outdrives without modification, preserving the integrity of the drivetrain system. For RC builders and maintainers, this direct fitment simplifies the upgrade process and guarantees reliable performance across a wide range of Arrma vehicles.
Is the Arrma ARA310981 RC drivetrain outdrive pair suitable for high-torque setups?
Absolutely. The Arrma ARA310981 RC drivetrain outdrive pair is engineered to handle the demands of high-torque RC configurations. The wide contact surfaces and robust steel construction allow these outdrives to transfer power efficiently without flexing or premature wear. This makes them ideal for off-road racing, bashing, and other applications where drivetrain components are subjected to extreme forces. Their ability to maintain performance under pressure ensures consistent traction and control in challenging conditions.
What makes the Arrma ARA310981 precision machined diff outdrive a smart investment?
For RC enthusiasts seeking dependable drivetrain components, the Arrma ARA310981 precision machined diff outdrive offers excellent value. Its combination of material strength, manufacturing precision, and compatibility with Arrma’s 29mm diff cases makes it a standout choice for those looking to enhance drivetrain reliability. The pair format also adds convenience, allowing users to replace both outdrives simultaneously and maintain balanced performance. This component is an affordable solution for hobbyists who prioritise durability and fitment accuracy.
In conclusion, the Arrma ARA310981 steel diff outdrive EXB delivers the durability, precision, and compatibility needed for high-performance RC driving. Its black steel construction, leak-free fitment, and 29mm case integration make it a reliable upgrade for demanding applications. Whether you're building a new drivetrain or replacing worn parts, this outdrive pair supports smooth differential action and long-term reliability. Buy ARA310981 Arrma steel diff outdrive for 29mm case fitment today and experience enhanced control and drivetrain stability.
Brand, Model and Product Type
- Brand: Arrma
- Model: ARA310981
- Product Type: Arrma ARA310981 steel diff outdrive EXB, Arrma ARA310981 RC drivetrain outdrive pair, Arrma ARA310981 precision machined diff outdrive, diff outdrive ARA310981 Arrma steel build with leak-free fitment, outdrive ARA310981 Arrma precision machined for smooth differential action
- Product Colour: Black
Dimensions and Weight
- Outdrive length: engineered to match 29mm differential case fitment for seamless integration
- Diameter: precision-sized to maintain consistent gear mesh and leak-free performance
- Weight: optimised for RC drivetrain balance and torque transfer efficiency
Material and Build Quality
- Manufactured from tough steel for long-lasting durability under high-load RC conditions
- Black finish enhances corrosion resistance and visual integration with Arrma drivetrain components
- Steel build supports extreme RC driving environments and sustained torque loads
Machining and Fitment
- Precision machined to ensure accurate fitment and smooth differential operation
- Leak-free interface supports sealed differential performance and fluid retention
- Designed for direct installation into compatible 29mm diff cases without modification
Compatibility and Integration
- Compatible with Arrma 29mm differential cases including ARA310983 and ARA311061
- Outdrive pair aligns accurately with Arrma drivetrain architecture for balanced performance
- Supports high-torque RC setups with minimal vibration and gear slippage
Packaging and Contents
- Includes: 2 x steel diff outdrives supplied as a matched pair
- Packaged for direct integration into Arrma GP4 drivetrain systems
- Ideal for replacement or upgrade of worn outdrives in high-performance RC vehicles
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.
