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- DA9009B - Automatic Torque Biasing Centre Differential by Ashcroft Transmission - For Discovery 2 and Defender TD5 LT230 Transfer Box
DA9009B - Automatic Torque Biasing Centre Differential by Ashcroft Transmission - For Discovery 2 and Defender TD5 LT230 Transfer Box
Made to Order (Typically Completed Within 5-10 Weeks)
Part Number: DA9009B
£415.00(Exc VAT)
£498.00(Inc VAT)
Product Information
For the LT230
- Discovery 2
- Defender - Td5 and Tdci - serial numbers starting 41D, 42D, 43D, 57D, 60D, 61D, 62D, 68D, 69D, 70D
The centre diff is there to allow the props to turn at different speeds when cornering to stop drivetrain wind up. The speed difference is quite small and the centre diff gears are only designed to cope with these low speeds. If you are off-road on snow or ice and you get wheel spin from one front wheel, what will happen is the rear prop will not be moving, the front will thus be going double speed, this means the small centre diff gears will be spinning like fury and after a matter of only a few seconds the planet gears will friction weld to the cross pins and the gears will fail etc.
Of course in this situation the centre diff should be locked to avoid failure. There are instances when it’s not convenient to keep the diff locked or to constantly lock and unlock the diff as the available traction dictates, i.e, when racing fast on a low traction surface, the vehicle will not handle well when locked but is likely to wheel spin when unlocked. Another example of where the ATB would help would be when rapidly changing from high to low traction surfaces, i.e. when driving on snow or ice. In both of these examples the ATB will limit the amount the difference in propshaft speed and transfer torque to the axle with traction.
The two big advantages are increased traction when unlocked and eliminating the weakness of the stock unlocked centre diff. The ATB centre can still be locked like the stock unit when required, locking the diff is still advised when prolonged wheel spin is anticipated.
Note - Due to the nature of the ATB diff we do not recommend the vehicle is brake tested on rollers, ask for a decelerometer to be used instead.
FAQ's
If you have any questions about this product or any of the products in our range, please contact us on sales@lrparts.net or contact our main centre on: 0151 486 0066.
Delivery
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We offer a simple flat UK delivery rate of just £5 + VAT, calculated automatically at checkout.
The actual cost to us of using DHL is often higher than the amount we charge our customers, but we've deliberately chosen to subsidise the difference rather than move to a cheaper delivery service.
With around 1,800–2,000 orders leaving LR Parts every week, we know how important the final stage of an order is. Whether you've ordered a small service part or an expensive component needed to get your Land Rover back on the road, we want it travelling through a delivery network we trust.
That's why DHL is our first choice rather than simply the cheapest option.
Where an individual product carries an additional delivery surcharge due to its size, weight or handling requirements, this is clearly shown on the product page before you order.
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LR Parts supplied customers in 158 countries in the last 12 months, and we work with Global-e to make ordering from outside the UK as straightforward as possible.
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This means you can see the total landed cost before you buy.
There are no additional customs duties or taxes to pay when your order arrives.
Your order is still picked and packed by our team in Liverpool, with the vast majority of international shipments travelling through DHL's worldwide delivery network.
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