First, get a narrowed 9" ford rear end, or narrow an 8.8" thunderbird/cougar IRS rear.. This is done in the V8 Miata conversions. Then connect the sub frames to stiffen the boby up or you will not be able to close the doors after a while. It is a big job but it can be done and would be a super street sleeper... Oh, one other thing, get a big shoehorn... Have Fun...