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GA9011 - Limited Slip Differential – ATB Type

Original price - Original price €610,00
Original price
€610,00
€610,00 - €610,00
Current price €610,00
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Limited Slip Differential of the automatic torque-biasing (ATB) type, replacing the standard open differential inside the axle differential assembly.

An ATB unit uses a helical gear set rather than clutch packs or friction plates. Under normal driving it behaves as an open differential; when one wheel begins to lose grip it biases drive torque progressively towards the wheel that still has traction, without locking the axle and without driver intervention. Because there are no friction plates, no special limited-slip additive is required in the axle oil.

Suitable for front and rear axle installations. Not suitable for Salisbury axles.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Land Rover Discovery 2 1998-2004 (L318)
Range Rover Classic up to 1994
Fitment Notes Ashcroft ATB automatic torque-biasing LSD. Fits front & rear axles — NOT suitable for Salisbury axles.
DEFENDER 1993 on
DISCOVERY 1 1993-1998
DISCOVERY 2 1998-2004
RANGE ROVER CLASSIC 1993-1996
Alternative Codes
GA9011

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).


When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business dayscontact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the GA9011 ATB limited slip differential?
The GA9011 is an automatic torque-biasing (ATB) limited slip differential that replaces the standard open differential in the axle. It uses a helical gear set rather than clutch packs, so it behaves as an open diff under normal driving and biases torque to the wheel with grip when one starts to slip.
Will the GA9011 fit a Salisbury axle?
No. The ATB unit is explicitly not suitable for Salisbury axles, only standard Rover axle types front and rear. Fitting it to the wrong axle type isn't an option here, so confirm your axle design before ordering.
Why choose an ATB diff over a standard open differential?
An ATB diff automatically biases drive torque to whichever wheel still has grip the moment the other starts to slip, without locking the axle or needing driver input. This improves traction off-road and in slippery conditions compared to a standard open diff that sends power to the spinning wheel.
Does the GA9011 need special differential oil?
No special limited-slip additive is required. Since the ATB design has no friction plates or clutch packs, it runs on standard axle oil, unlike clutch-type limited slip differentials that typically need a friction modifier added.
Which vehicles take the GA9011 differential?
The GA9011 fits the Defender (1993 on), Discovery 1 (1993-1998), Discovery 2 (1998-2004), and Range Rover Classic (1993-1996), for both front and rear axle installations except Salisbury type. Confirm your axle type before ordering.