Hey Guys, I'm looking to get some black cragar soft 8 rims to put on my 30x9.50 all terrains, and I'm wondering what size my stock rims are. Its a 1990 single cab cheyenne model. i'm thinking 15x6? anyway, what size would be good for me to get, 15x7, or 15x8? I want to get the right backspacing, because I DO NOT want the tires sticking out past the fenders or bed. I'm going to be putting new tires on, but the biggest that will ever be going on are 31x10.50. They come in 4 in. BS with both 15x7 and 15x8. Will that put them outside the fenders? THanks guys.