Wheel mock up

[rladd1968]

I need to mock up my wheels to get a measurement for my rearend to be cut down. The problem is......the rearend is already at the machine shop and I'm not 100% positive of where the wheel should sit in the wheel well!! I have my subframe that I could reassemble to measure the wheelbase, but, if someone knows of other measurements that i could use that would save me some time......that would help.