I also have 1" wheel spacers. The RC 2 1/2" lift comes with a rear track bar bracket but I still wasn't comfortable with the clearance from the rear tires to the spring perch. Also make sure you get the long shocks, when I got mine a while back some of the kits had the short shocks. I'm sure they fixed that by now but just check. The guy I talked to at RC was a good guy!