Desperately need rims on stock

i can tell you that even though some jeep wheels and mustang wheels are the same bolt pattern, you are going to run into backspace problems. some work, some dont. almost all 17 and 18" wheels are either staggered or have an incredible amount of backspace, unless you special order them. my 15x10 centerlines have a 3 1/2 inch backspace and work fine. my 15x7 steel wheels have a 4 1/4 backspace and work with no problems, but i wouldnt use any wheel that is outside that range on a stock set-up. im sure you could exceed that to a point, but i dont. some people use spacers and adapters to run these wheels. the track width of the rear is also narrower than the front. but again, i only use 15" wheels with the exception of the 14" on the front of my duster.