Get the ride height you want with all the weight in the car, spare tire, jack, 3/4 tank of fuel, correct wheel/tire combo. Then adjust your torsion bars to the height, raise the back of the car to where you want it. Measure and then take them out and bring to your local spring shop. Have him press in new front bushings and get new shackle bushings paint them and your good to go. Now you could sell your new ones or trade them for somrething else...Got mine done for $90.00 pair. with new clamps and front bushings.. Good Luck......