i got a set of wheels off an audi 100 or something.   they are 14 X 6.  i'm looking to put them on my truck and i want to know the best tire size for them.  don't wanna go real low profile with them, i drive the truck every day.  also, i want as much road contact as possible, no stretch or anything like that.  i have 185/60 r13's on there now.  from there i want something wider and a lil less of a sidewall.  what knda sizes should i be looking at?