Buying bigger Revos this week. I'm switching from 265/70/17 to 285/70/17.
Do I have to change my spare tire size also? I have a 2003 FX4 4X4 with limited slip. I'm thinking that the spare has to match on a 4X4.

Thanks, FishX

 

Not neccessarily. If you have a flat, you would have to make sure that you use the spare on the front and don't use 4x4.