Ok so I have decided to pull the trigger and the get 10.5" chrome replicas for the rear and was thinking of just getting some of the sumitomo 315's. I was reading the thread on the rubbing issue so I ordered my MM IRS bolts. For the install on these, do when you take of the bolt is something going to be released? I was under the car looking at them and wasn't sure if I should throw a jack to apply pressure where the IRS meets right there or what, and do people think I will HAVE to run a spacer? Im trying to stay away from that idea....hoping the bolts will be enough to clear. Thanks for any input/photo's