64-69 1/2 ton 2wd Chevy/ Some GMC 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70.. 62".. 64-77 Chevelle, 73-76 Torino, 89 Trans Am ...How wide is a 53 rear axle with a powerglide tranny? And is the manual different than the automatic? Thx.. Filling Station - Chevrolet & ...Jul 4, 2017 — Home > Specs > Rear End Widths ... Width, Year, Model.. 56.50, 1969-1977, Maverick 8" ....