4" to 4.5" Bolt Pattern on a 7 1/4" Rear?

dgc333 said

All 73+ A-bodies with \6 or 318 AND disk brakes came stock with a 7.25 with big bolt pattern. Should be easier to find one of those (I gave one away not to long ago) than an 8.25 and 8.75 will require new axles and re-drilled drums to get to big bolt pattern.

Click to expand...

Thanks, but want to clarify one thing. If I were to get a 73, 74, 75, 76 Dart/Duster (basically any A-Body) 7 1/4 rear axle shafts, I could just replace my existing SBP axles with no modifications at all, except replacing the drums? I mean, the spline number & diameter are identical?