ASHCROFT AIR LOCKING DIFFERENTIAL 24 SPLINE • A unique non-rotating annular piston locking actuator is designed to eliminate air leaks sometimes found with rotating seals.• The annular piston is also designed to eliminate the oil blow back in the air exhaust line.• The large piston area give maximum hold-in force to reduce the possibility of jumping out of lock.• Locking ring gives full 6mm positive engagement with side gear, again reducing the possibility of jumping out of lock.• Gears have been redesigned for maximum strength and durability.• The lock ring is made from high spec 300m steel to provide ultimate strength and ability to withstand shock loads.• Locking actuator cage made from steel to withstand shock loading caused by power locking.• Locker body turned from billet 817M40T (EN24T) to give optimum strength.• Only change necessary to fit the locker is drill and tap the diff housing 1/4” bsp for the air feed fitting.• No changes to the axle case.• Requires on board air supply - not supplied. (DA4190 - ARB compressor assembly 12 volt) ASHL (DA1224) Fits: Defender - 1993 - 2016 - Front & Rear Discovery 1 - 1993 - 1998 - Front & Rear Discovery 2 - Front & Rear Range Rover Classic - 1993 - 1996 - Front & Rear Part Number: ASHL Ashcroft wanted a selectable locker which would fit into the rover diff casing with minimal installation work, ie without mods to the axle housing. We looked at electric and pneumatic activation and decided pneumatic was preferable for reliability and simplicity. One of the key requirements for our design was zero air leaks as this is one of the main issues with other air operated lockers. To achieve this we opted for a static piston rather than the rotating seal used on other air lockers, which was prone to leaks. We also wanted to ensure we had a full 6mm of engagement when locked as other air lockers have just 2.5mm and are prone to skipping out of lock when loaded. Part Number: ASHL
