Rammandan

i read somewhere that my differentials have vent tubes is this true? if so which ones and where

torquefan

Yes, the front differential has the tube coming out of the axle disconnect housing, running into the engine compartment and terminating on the right inner fender, close to the air cleaner housing.

The rear one starts on the top of the axle tube, just to the left of the center section at the brake line junction. It goes straight up and ends close to the top of the left rear shock (usually.)