I'm converting a SBP 8 3/4 to LBP & I have a set of rear brakes off an 8 1/4 rear from a '74 Dart w/ 10x2.5" drums. I also can get a set of LBP Superior axles from a guy for a very good price brand new. My question is will the 8 1/4 brakes fit my 8 3/4 w/ the new axles? I'm told the SBP axles...