ARB 0750001B - Manual (Page 5)

2 Installation
2.1
Differential Fluid Drain
HINT : This is a good time to check for metal particles in
your oil, on your drain plug, or in the bottom of the
housing which may indicate a worn bearing or
differential component.
F Clean any loose dirt from around the differential cover to avoid
contaminating the differential cavity.
F Position a fluid drain reservoir under the differential and loosen
all differential cover plate retaining bolts.
F Gently pry the cover plate away from the differential housing to
completely drain all differential fluid.
F Once drained, remove the differential cover.
2.2
Determining Oil Level
The following is a guideline to determine the correct differential oil
level in an axle with the standard driveline angle.
F Place the ARB Differential Cover on a bench next to the standard
differential cover that you have removed from the vehicle.
F Using a straight edge (electrical tape does a great job), make a
line from the bottom of the standard cover’s filler hole to the
corresponding point on the ARB Differential Cover.
F Hold the Dipstick/Filler Cap on the outside of the ARB Differential
Cover so that it is sitting in the position it would be if it was just
placed in the filler hole. From this you can determine how far up
the dipstick the oil level should be. As can be seen in the
following picture, for this differential we would fill it up to half way
between the first and second notch.