stock SRW rims will work fine with the 315's w/o the spacers. I know a guy that had 315's on a hemi @ stock height carrying a 1000 lb. snowplow. they will rub on the control arms even with the leveling spacers. What is the backspacing on the rims you are looking at, if it is not close to stock the 315's will rub on the fenderwells even with the lift