You are going to have a set widened yourself. If you are near any major. City you can find a wheel or a machine shop that can do the labor. You will need a set of the 15x7 and possibly 8 inch hoops. A dedicated wheel repair shop will have the wider bands hoops oryou can check wth Aero Race. Bassett Speedway Motors as they all sell 15x 8 in wheel parts. I have a post i did years ago.bout having 15 in ralleys widened evenlonger ago(1980ish) abouy a guy nammed Otto in Compton area of SoLA that would widen rimms for$12.50 a wheel even in 1980 dollars it was an amazing rice. The shop was perfect wheel ans i thonk they still exist. That was twelve dollars and 50 cents depending on the tire you run.and how low you sit you should figure4.5 ish back space with 8s or 9s. Good luckAnyone sitting on a widened set of Z wheels?