Have a 89 and need to replace the rear end fluid.. I've taken a look at the case and see a plug on the bottom and a small plug on the top. Does anyone know of a site that shows or explains "how to" stuff ??? Thanks</P>

 

this one's easy. the old oil comes out the plug in the bottom. the new oil goes in the plug in the top. if you put in enough oil it'll dribble out of the hole. when it stops dribbling reinstall the plug.