Raises the back end 2-2.5 inches instead of 1.5. I installed them for almost 2 months, no problems except a little bouncing in the back each time. Simply remove the transfer sheet to get rid of it, but leave it on if you plan on towing or towing something big in the near future. You also need new shock absorbers, the original ones don't have enough travel. So get a good set of Bilsteins that are rated for 2-3 inches of rear lift.