ARB RD79 - Manual (Page 7)

2 Removing the Existing Differential
5
2.1 Vehicle Support
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.
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
Clean around the differential drain plug to prevent dirt from entering
the differential.
Position a fluid drain reservoir under the differential and loosen the
differential drain plug.
Completely drain all differential fluid.
HINT : This is a good time to check for metal particles in
your oil and in the bottom of the housing which may
indicate a worn bearing or differential component.
2.3 Removal of the Axles and Differential
Remove the axles according to your vehicle’s service manual.
HINT : When removing the axles try not to damage the paper
gaskets behind the axle flanges.
Disconnect the drive shaft from the flange of the differential.
Remove the third member from the differential housing. Refer to
your vehicle’s service manual.
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.