More probably a case of typical body build variations
And 1/4 inch variance on a rear axle is rare, usally more than 3/4 inch.
Mopar was not known for great build quality back then.
I actually had to swap right rear doors on 2 Valiants back in the day.
Doors would shut right but the body lines were off over 1/4 inch.
If you lined up the body lines, you had to slam the door. :banghead:
