How often do you plan to race it ?? I can tell you my son and I both have 8-3/4 rears in our cars. His Dart has been on the road since 1997 and it has been raced a few times a year since 2001. My 63 has been raced about 6 times since I put it on the road in 2006. Both rears are all stock but I have a Locker in mine. We had the axles out last year and both his and mine are not twisted. I figured we would run it until the axles twist or something breaks but they are holding up fine in our mid 11 cars we race about 2 or 3 times a year. Thats why I ask how much you will race it as if only a couple times a year I would go with it and see how it holds up. Ron