ARB AIR LOCKER - LAND ROVER Locking Differentials

LAND ROVER

Kits may vary based on part number.

ARB Locker Kits for: LAND ROVER

ARB Air Lockers are sold as Kits - Each Kit includes everything needed to accommodate Specified Axel

LAND ROVER

Vehicle
Model

Axle Loc’n

Year

Description

Shaft Diameter

Shaft Spline

Ratio

(*Note)

Part Number

Price

Range Rover	Front	To 1993	Rover type	28.2 (1.11”)	10	3.54 ^*1,4	RD03
		1993-98	Rover type	31.5 (1.24”)	24	3.54 ^*1,5	RD56
		1998 on	Rover type, w/ traction control	31.5 (1.24”)	24	3.54 ^*5	RD57
	Rear	To 1993	Rover type	28.2 (1.11”)	10	3.54 ^*1,4	RD03
		1993-98	Rover type	31.5 (1.24”)	24	3.54 ^*1,5	RD56
		1998 on	Rover type, w/ traction control	31.5 (1.24”)	24	3.54 ^*5	RD57
Discovery	Front	To 1993	Rover type	28.2 (1.11”)	10	3.54 ^*1	RD03
	Front	1993-98	Rover type	31.5 (1.24”)	24	3.54 ^*1,5	RD56
	Rear	To 1993	Rover type	28.2 (1.11”)	10	3.54 ^*1,5	RD03
	Rear	1993-98	Rover type	31.5 (1.24”)	24	3.54 ^*1,5,7	RD56
Discovery Series II	Front	All	Rover type	31.5 (1.24”)	24	3.54	RD56
	Rear	All	Rover type	31.5 (1.24”)	24	3.54	RD56
	Rear	2002- on	Rover type w/traction control	31.5 (1.24”)	24	3.54	^RD57
Defender 90, County	Front	1984-93	Rover type	28.2 (1.11”)	10	3.54 ^*1	RD03
	Front	1993 on	Rover type	31.5 (1.24”)	24	3.54 ^*1,5	RD56
	Rear²	1983-93	Rover type, 4 cyl. petrol & diesel engines	28.2 (1.11”)	10	3.54 ^*1	RD03
	Rear²	1993 on	Rover type	31.5 (1.24”)	24	3.54 ^*1	RD56
LWB models V8 engine	Front	1979-83	Rover type	28.2 (1.11”)	10	3.54	RD03
	Front	1979-83	Salisbury type	31.5 (1.24”)	24	3.54	RD20
	Rear	1979-83	Salisbury type	31.5 (1.24”)	24	3.54	RD20

1 If vehicle was manufactured during 1993, check spline count.

2 Air Locker not available for vehicles equipped with high load option.

3 RD03A ring gear spacer required. Longer ring gear bolts (not supplied) are also necessary - (Land Rover part no. 576521.)

4 When an RD03 Locker is to be installed in Range Rovers manufactured prior to 1980 (approx.), special carrier bearings

(No. K11300/K11162) may also be necessary - Land Rover part no. RTC3426.

5 Some vehicles have crown wheel bolts which cannot be reused and must be replaced. Consult service manual.

6 Some vehicles without traction control also use RD57. Identify by 205mm [8.07"] flange diameter.

7 1995 Discovery could require RD56 or RD57

Technical questions? Contact Us