How do you remove the spider gears from the rear end of a 1975 Chevy Blazer?

After U remove the cover-TURN the pinion gear assembly UNTIL U C A 5/16 inch bolt head--IT"S a PIN that goes through the gear housing 2 HOLD the retaining pin in place.Make sure the curved washers BEHIND the gears are put back in-they fall out easilyU have 2 turn the gear Housing until U can slide the bolt?Pin past the CAP Bolts.