I'm running a Ford 9 in with Iceman boxed lowers, and adjustable uppers. They both are solid bushings. Check his website out here. i had CE 3-way shocks, but put Moroso springs in the rear last fall and then the QA 1's. With the moroso springs the car sat about 2 in lower and my lower control arm wound up being paralel with the car {level}. After putting the rear springs in I found out that I did not have the rear in the car squared, so when putting the new control arms in it is important to make sure you have the rear in correctly. Plus I will be swapping out the stock rubber bushings in the rear upper control arm mounts. On any racing setup you should eliminate any rubber bushings cause this will allow play in the suspension. If you're building a street set up they do have other options {poly}