blacktavert

today i plan on changing the fluids in the front and rear differentials and the transfer case
the rear looks easy but the front looks tough, not sure where the fill hole is, pretty sure i found the drain hole,
the transfer case i am clueless about,
could someone give me a couple tips,
i am new to this truck, i have only serviced my Camaro SS before, so this is all new to me
i already know the fluids to get so dont need help with that
thanks in advance for the help

Mort

The front diff has the fill and drain holes on the drivers side toward the front of the housing. The fill hole should be almost directly above the drain hole and is hard to get fluid into if you do not have a pump to fit your gear oil bottle.

The transfer case has two plugs on the back side that look like bolt heads. It should be fairly apparent that they are not there to hold the case together. The case is fairly soft aluminum so be carefull threading and tightening them. If you have Auto 4WD ( your control panel on the dash will have four buttons and the top one will say AUTO 4WD ) you have to use the GM AutoTrac fluid which is blue in color. Again a transfer pump will come in handy to get the new fluid into the case.