Another rear tire size question and advice needed.
Keep in in mind an 8-1/4” rear in the “73 and up is more narrow. Almost .75” each side.
My 73 is getting a swap to 8-3/4 and then my 15x8/4.5bs Rallyes on 255’s will fit without the spacer. Tires should be 1/2” from spring then.
Currently, the short wheel studs of the stock axles I barely feel comfortable with that much thread engagement but it does meet what is suggested as satisfactory. I’m okay with the distance between the tire and leaf but it’s close. So, running what I have with the 8.25 and tire/ spacer combo It’s tight, but doable.
8 3/4" Rear end widths, drum-to-drum:
A-BODY
- '66-'72= 57 1/8” (or 57 13/16” for BBP axles and brakes)