I am trying to figure out what size tires and wheels I want to put on my k5 but need some advice. Ok, first off I like the TSL SX's and I like the 38.5x14.50 size but you can only get them in a 16.5" rim size, I know the 16.5's are not as good as a 15or16 inch rim because of the lack of the groove that holds the tire in the wheel better. Do any of you guys run 16.5" rims and if so do you have any troubles with them at lower pressures? I am also wondering what would be the best backspacing, from what I have read in my searches it sounds like 4.5" backspacing is pretty good (will put the tires about 1/2" outside the fender from what I understand). Oh and im going to get black steel wheels, is there any manufactuer of them that would have the groove inside the wheel to hold the bead better? And my last question is how much cutting will I have to do to make these tires fit with 5"s of lift(I am adding a D60 though which from what I understand will gain me another 1" of lift and am going to add a zero rate in the rear so it will be more around 6"s). Thanks for any input.