Ok... So like a lot of us here I have a 93 cobra with its wider rear axle, and I am attached to the 4 lug pattern due to my wheels only being available in a 4 lug pattern. I would like to know what kind of backspacing/wheel would I need to get in order to have a 16/15 inch wheel I could fit some slicks/DR on. Preferably a 15x10, 15x8, 16x10, or 16x8. I know a 305 will fit in the back on a 4 lug gt, but I fit a 275 on my 17x8 inch wheel now. If you guys know where to find the correct backspacing, or know of a wheel company that can figure it out for me that would be greatly appreciated. Thanks.