I bought a 68 Dart to build a Hemi car and have to put a Dana in. The car came with 8 3/4 large bolt pattern axle but no drums, I thought I might be able to put a set of 10" drums off another axle to make this one complete, sounds like I'm going in the wrong direction. If I get the narrow drums, is there enough room to modify the holes for axle studs? I would need to elongate the holes 1/4" outward.