How do you relace rear axle seals in 1999 1500 pickup?

You'll have to first buy new fluid the seals an a gasket... then jack the truck up take the rear tires off.. then remove the differential cover an unhook the driveshaft.. there is a pin inside the differential which is held in by a bolt.. remove that bolt an slide out the pin. then push the axles in an take out the c clips that hold them in.. That will allow you to slide the axles outan replace the seals.. then all ya gotta do is put it back together