1974 Chevy Bel Air Rear end axle seal

If the cover bolts on the differential(pumpkin) are facing to the rear, remove the cover, remove the lock pin with a 5/16ths wrench, remove the retaining pin th the middle by letting it slide all the way out, push the axle into the pumpkin, the "C" clip will drop out, then pull the axle out, DO NOT SPIN the othe wheel or the gears will drop out! Use an axle seal puller and remove the old bearing. REPLACE the seal and bearing! Inspect the axle shaft at the end if it's got burrs or roughness a new axle should be installed! Reassemble the rear end and fill with 90 wieght gear oil to the bottom of the fill hole.