[OAC_Sparky]

You don't say if the lean is equal on the whole side, or just at the front or back, but you systematically have to go through it.

Your next step is, depending on how handy you are, is to determine the source of the lean.

The best way to measure is by removing both tires and carefully supporting both sides on the lower control arms on jackstands. This will eliminate any perceived lean that could be caused by the driveway/road or the rear suspension. Check to make sure both sides are assembled the same, use a tape measure to compare. Also check the swaybar links, and the angle that the bar comes off the link (a bent swaybar can cause a lean).

If all's well repeat on the rear.