rims size question

[JustangCobra]

i found a nice set of wheels for my car however i can choose from 18x9.5, 18x10, 19x10 or 20x10 in the rear. how wide can you go without any major mods in the rear. i know in the front is 8.5inchs but i need help.

[BlackGOAT07]

Depends on the offset. CCWs are 18 and 19x10 but they are custom so have the perfect offset for our cars.

[Cyanide]

http://www.ls1gto.com/forums/showthread.php?t=2260 79