I have some off brand wheels in 15 by 7 size. I'm fairly certain the truck came with 14 6's but not positive. Looking to put some wheels and tires on the truck , Looking at different wheels and liking the styled steel chrome rims for the early Mustangs. What I am seeing is back spacing of up to 4 inches on these wheels. Was there actually 4 inches of back spacing on original wheels on these trucks? Recommendations on what size wheels will fit without causing problems? What size tires can I run? Want to go a little larger than the little 205's if possible. 14's, 15's? Any recommendations for buying a package deal tires and wheels? Would even be interested in a set of used wheels and tires in my area. Southern Illinois, Paducah, Kentucky , Evansville, Indiana, ST. Louis, although St. Louis is a 120 miles from me. Been cruising the internet looking for some used rims but not finding much. I am also finding that people selling stuff on the internet, don't seem to be interested in telling you anything about what they are selling. Bolt pattern ? don't know, wheel size, don't know, what did these come off of? don't know. Wheel width? don't know. All I know is I bought these and they didn't fit my car, and I want 300$ for these. Also noticed something else interesting. Chevy guys must change their wheels and tires every time they get a whim. Either that or there are an awful lot of chevy's going to the junk yard without wheels. For every add for a set of Ford wheels, there are most likely ten for the other brand.