I'm going to order a new set of tires for the rear of my car this week and a new set for the front in a week or two. What is the best size for my car? I have a 96 GT with the stock 17" double five spoke design. I believe they are 17X8 but not for sure. I would like to put a pretty wide set on the back and then 235 through 255 on the front. I was told that 275 would fit the rims but I'm not for sure and don't know if I will need the wheel spacers. I'm waiting till I get back to the states before I put a new set of rims on with the deep dishes on the back. Can anybody help me out?