Small Bolt Drums

Dana67Dart said
Bolt pattern and back spacing mismatch.

Your rear brakes might be 10x1.75 but later years used 10 x 2.5 (IIRC) all with SBP 5x4

This is all assuming that the rear is an OEM A body housing and axles

Thanks. I am really not sure if rear is original or not. I measured everything back when first bought the drums. !0 x 2.5 is later than 1968?