Saw this on a search, but no info available. Like the kind of lowered hot rod look. Believe a 4/6 drop with 18" wheels. Not for sure of tire size. With a 4/6, what size tire on 18's can I get away with and have this look

 

Those are actually 17in rims from the 03+ silverado's.

I havent looked into 18's with that drop but I figure you'd need a 50 or 55 sidewall, so like a 265/50/18 or something along those lines.