Rear Axle
MAINTENANCE CHECK
As a part of MONTHLY MAINTENANCE CHECK, inspect the differential oil level by
removing the fill-and-check plug in the rear cover of each differential housing. The oil
should be level with the bottom of the hole. Before checking the forward driving axle, the
axle should be run first, because the power divider and forward driving axle have a
common lubrication system. The five minute interval allows the oil to settle to the proper
levels in the power divider case and axle housing. It is not necessary to check the oil level
in the power divider. If the oil level is up to the bottom of the rear filler hole, the power
divider is also adequately lubricated. If the oil level is low, add oil as necessary.
If the axles have been drained, fill the forward drive axle until the oil is level with the bottom
of the filler hole in the rear cover. Next, add two (2) more pints through the forward filler
hole located slightly offset to the right in the top portion of the differential carrier. Never use
the rear hole at the top of the differential as an oil filler hole. Fill the rear driving axle through
the rear filler hole until oil flows from the bottom of the hole. After filling, be sure all plugs
are reinstalled.
T300-1_T500-1_T780
Service / Parts
452 P/N 12261-683
REVISED: January 2015
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