ARB RD129 - Manual (Page 7)

2 Removing the Existing Differential
5
2.1 Vehicle Support
c Safely secure the vehicle on a hoist. We recommend supporting
the vehicle on a chassis hoist to keep the differential area at a
convenient working height and to leave the wheels and axles free
to be rotated and removed.
c Once supported off the ground, release the parking brake and
leave the vehicle in neutral. Chock the wheels if necessary.
2.2 Differential Fluid Drain
c Clean around the third member flange seal to prevent dirt from
entering the differential.
c Position a fluid drain reservoir under the differential.
c Remove fluid drain plug to empty all differential oil.
HINT : This is a good time to check for metal particles in
your oil which may indicate a worn bearing or
differential component.
2.3 Removing the Axles and Differential
c Remove the axles according to your vehicle’s service manual.
c Disconnect the drive shaft from the flange of the differential.
c Remove the third member from the differential housing. (Refer to
your vehicle’s service manual)
NOTE : The differential housing is heavy and quite difficult to
handle when covered in oil. Do not drop it!
IMPORTANT :
Collision damage or heavy off-road use of your vehicle in the past may
have resulted in some degree of bending in the axle. Any misalignment
of the axle tubes may result in excessive wear and/or failure of your
differential and axle shafts. ARB strongly recommends that you have
your axle assembly inspected for concentricity and straightness before
installing your Air Locker.