Shaft diameter 33 (1.31")
Ratio 3.91 & UP
LandCruiser Prado, 90, 120 and 150 Series, Lexus GX 8" dia. RG, IFS clamshell, 53mm BRNG 2003 on front
HiLux, Pickup, Hiace, Fortuner 8" dia. RG, IFS clamshell, 53mm BRNG 2005 on Front
4Runner, LN61, YN63 8" dia. RG, IFS clamshell, 53mm BRNG 2003 on front
T100, Tacoma 8" dia. RG, IFS clamshell, 53mm BRNG 2005 on front
FJ Cruiser 8" dia. RG, IFS clamshell, 53mm BRNG 2005 on front
Factory R&P may use either RD111 or RD121 depending on ratio. All known aftermarket R&P sets suit RD121.
The ARB Air Locker is a pneumatic locking differential that uses air to facilitate the locking of both axles. This action converts your differential from a conventional open to a full spool type axle supplying 100% power to both wheels to keep you going through the worst terrain.
A relentless commitment to research and design, the use of quality materials, and an uncompromising approach to manufacturing have all contributed to the Air Locker’s success in over 100 countries worldwide.
Designed and manufactured in Australia, ARB Air Lockers will enhance the traction of your 4×4 in just about any terrain, whether it’s rock, clay, gravel, sand, snow or mud.
Now with a state-of-the-art two piece design available right across the range, forged gears for the ultimate in strength and durability, and an industry-leading five year warranty, ARB Air Lockers are better built and better backed than ever before.
Strength, durability and resistance to fatigue in all Air Locker components is paramount. With phenomenal forces being applied to the side and pinion gears within the differential, ARB has invested heavily in the application of forged gears, typically found in heavy duty commercial, race and agricultural transmissions. When combined with ARB’s patented ‘timed gear’ design, the resulting strength of the whole assembly is amplified.
Two Piece Design
Housing this superior internal gear train in a two-piece case brings further benefits. Machining a case from two pieces instead of three results in a much higher dimensional accuracy of the finished assembly and has allowed ARB engineers to improve the design of other elements, resulting in a reduction of moving parts, increased strength and a more responsive activation.
ARB onboard air compressor required to activate Air Lockers (sold separately)
Images used for demonstrative purposes only
Most of our orders are shipped to you by DHL. On orders under £50.00 you will be presented with the option to choose from available couriers who you'd like to pay to have ship your order. In all instances you will be sent tracking information or contact details regarding your shipment.
We aim to get your Douglass Motors order to your door as quickly as possible, typically within 1-3 business days using our standard courier services. Some exceptions apply.
Yes! As soon as your item has been dispatched by the team here at Douglass Motors you will receive tracking information by sms and email.
We accept all major Credit and Debit card providers in addition to ApplePay, GPay, ShopPay and Laybuy. Unfortunately, we cannot accept cheques or money orders.
Douglass Motors uses 3D Secure Verification and leading payment partner Stripe to handle all secure payment transactions.
At this time the only alternative payment method supported is Laybuy.
We offer a fully furnished returns process, and our shipping partners DHL and TNT will collect your return on our behalf at no cost to you.