I'm looking at putting on the 18x9.5"Lightning replicas from wheelreplicas.com. They have a +12mm offset I believe. I was just wondering if anyone has these already on their '87-'96 F-150 and/or wondering what the factory backspacing of the factory wheels are. I have the 235/75's on my truck and was looking at mounting a set of 285/50-18's when I get the rims (the overall diameter is close to stock and there's a good selection of tires in this size). Also, I was wondering what other sizes of tires you guys are running (for those of you with 18's or a similar size). I'm into that whole sport-truck thing and I'm just searching for a little more handling ability. Thanks!

 

I think you need 4-41/2 backspacing.I have factory wheels with 265/75/15,s that touch my radius arms on full turn.