I'd want to drop the rearend on there, bolt it up, measure the wheelbase. Get that right & equal both sides. If the holes are concentric, I'd want to sleeve the locating pins for race use so the axle can't re-locate itself. If not concentric, double-check measurements, break out a die grinder & bit, make them concentric, and sleeve 'em. For street use, sleeving is probably not necessary, depends on power/shock loads/grip.