I run UPR coil over sleeves on Strange shocks in the front with QA1 175 lbs springs. I wouldn't go over 175 lbs springs. Sleeves will also slide onto the stock shocks. The rears are a lil tricky if your running a solid rear axle. I'm running a IRS set up. I also run tubular lower control arms with no spring buckets in the front. Id pick up some camber plates also.