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Air Locker locking differentials allow you to tackle the toughest terrain. As the worlds premier traction aid, ARB Air Lockers keep you moving in all conditions. While developing the Air Locker for the 2012 T6 Ranger and Mazda BT50, ARB Engineers noted the similarities between the differential dimensions with the Landrover Discovery Series 3. With the only difference being the ring gear diameter, this resulted in development of the RD217. This Air Locker fits the front axle of the Land Rover Discovery 3 and 4. The Air Locker for the rear axle followed. The RD218 was developed so that customers have the opportunity to lock both axles of their Discovery 3s. Because Discovery 3 are built with IRS systems, the removal and installation of the differential assembly consumes more time that a typical live axle vehicle. Furthermore, as the rear section of the exhaust system is mounted underneath the axles, it will need to be removed before carrying out the above. Adequate time should be allocated for RD218 fitting, but overall complexity level is relatively low. Due to variation between the rear axles of the Discovery 3 and 4, the RD218 only applicable for the Discovery 3. Please also note that it does not suit vehicles with an original equipment, O.E., differential locker.

Installation Instructions




Add-On N/A
Description_DEF Differential
Description_DES Air Locker Differential
Description_DES ARB Air Locker
Description_EXT Air Locker Differential; Shaft Spline 31; Rear; For Use w/Land Rover Discovery 3/LR3;
Description_EXT ARB Air Locker Differential; Shaft Spline 31; Rear; For Use w/Land Rover Discovery 3/LR3;
Description_FAB Allows Concentration On Terrain
Description_FAB Does Not Affect Road Drivability/Driveline Wear
Description_FAB Easy/Convenient Operation
Description_FAB Employs Minimal Moving Parts Ensuring Maximum Reliability
Description_FAB Incredibly Simple Yet Effective Design
Description_FAB Provides 100 Percent Traction On Demand
Description_FAB Reduces Likelihood Of Vehicle Damage/Environmental Impact
Description_FAB Ultra Durable And Extremely Strong
Description_INV ARB Air Locker
Description_MKT Air Locker locking differentials allow you to tackle the toughest terrain. As the worlds premier traction aid, ARB Air Lockers keep you moving in all conditions. While developing the Air Locker for the 2012 T6 Ranger and Mazda BT50, ARB Engineers noted the similarities between the differential dimensions with the Landrover Discovery Series 3. With the only difference being the ring gear diameter, this resulted in development of the RD217. This Air Locker fits the front axle of the Land Rover Discovery 3 and 4. The Air Locker for the rear axle followed. The RD218 was developed so that customers have the opportunity to lock both axles of their Discovery 3s. Because Discovery 3 are built with IRS systems, the removal and installation of the differential assembly consumes more time that a typical live axle vehicle. Furthermore, as the rear section of the exhaust system is mounted underneath the axles, it will need to be removed before carrying out the above. Adequate time should be allocated for RD218 fitting, but overall complexity level is relatively low. Due to variation between the rear axles of the Discovery 3 and 4, the RD218 only applicable for the Discovery 3. Please also note that it does not suit vehicles with an original equipment, O.E., differential locker.
Description_MKT Air Locker locking differentials allow you to tackle the toughest terrain. As the worlds premier traction aid, ARB Air Lockers keep you moving in all conditions. While developing the Air Locker for the 2012 T6 Ranger and Mazda BT50, ARB Engineers noted the similarities between the differential dimensions with the Landrover Discovery Series 3. With the only difference being the ring gear diameter, this resulted in development of the RD217. This Air Locker fits the front axle of the Land Rover Discovery 3 and 4. The Air Locker for the rear axle followed. The RD218 was developed so that customers have the opportunity to lock both axles of their Discovery 3s. Because Discovery 3 are built with IRS systems, the removal and installation of the differential assembly consumes more time that a typical live axle vehicle. Furthermore, as the rear section of the exhaust system is mounted underneath the axles, it will need to be removed before carrying out the above. Adequate time should be allocated for RD218 fitting, but overall complexity level is relatively low. Due to variation between the rear axles of the Discovery 3 and 4, the RD218 only applicable for the Discovery 3. Please also note that it does not suit vehicles with an original equipment, O.E., differential locker.
Description_SHO Air Locker
Description_SHO Differential
height 11.02
length 10.63
LTL N
Prop 65 Yes/No No
Title ARB - RD218 - Air Locker
WARNING CA Proposition 65 No
weight 25.52
width 10.63

 

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