How do you change a rear pinion bearing on a 1999 Dodge 1500 RAM 4X4?

remove rear drive shaft from vehicle.remove large nut ( pinion nut) at front of diff, which is generally hidden when driveshaft is in place.with a bearing puller remove pinion bearing, replace with new one. install new pinion seal. reinstall pinion cover and pinion nut. tighten to specified torgue.reinstall driveshaft check diff oil for proper amount