I've wanted the polished aluminum american racing wheels "torq thrust ll's" on my Black 1990 Mustang GT for along time .....I finally got some info that I didn't know about....I knew about the 5 lug conversion kit but was concerned about the backspacing.....WELL ,american racing will make the rim to the backspacing of your/my desire..........needless to say I will be ordering(after the 5 lug conversion of course) 17x9 1/2 ...with 4 1/2 backspacing for the back and 17 x 8s (no special backspacing required) for the front. It's gonna set me back about $2500.00 for the whole project, But I think its worth it.....Just wanted to share my happyness .............What tires should I buy...Thanks..