Moser 4.5″ Bolt Circle Axles for all A-Body 8-3/4″ Rearends. The best way to get away from the Small 4″ Factoy Bolt Pattern. Uses Standard B-Body Wheel Studs, or if you want to use 3″ Long Studs, See our Part # WHE0052. Sold in Pairs only. Does not include Bearings or any other Parts.