Rear end question

[DransportGarage]

This might be some helpful data for comparison:

My stock '55 Stepside rearend is 62-1/2, drum-to-drum (i.e., to the wheel mounting surfaces).

A '65 Nova 5-lug 10-bolt housing is 58" wide at the wheel mounting surfaces (52" at the back plate perch). With 8" Corvette ralleys (3-3/4" backspace) & 275/60-15s (11" wide, 27" tall), tires sit at 70" wide (48" on the inside).

I would have to tub the inside at least a couple of inches for this to fit my truck.

On the outside, 73" wide package will just barely fit between my rear fenders.