Like was said above, the quad shocks were the factory's method of curing wheel hop, so if you are on stock control amrs make sure they are on the car and are not worn. WHeel hop is caused by the axle wanting to twist inside the soft rubber bushings in the factory control arms, the rear will twist upward and then the rubber will snap it back down, this gives the "hopping" motion. The BEST way to cure this is with a GOOD set of lower control arms. STAY AWAY FROM UERYTHANE bushings in the rear contorl arms. They do not allow the rear to articulate propperly and cause it to bind, this isn't too bad of a problem when going in a straight line, but as soon as you start to turn it can get a bit harry. Your best best is to get a LCA with a spherical bushing on one end and a solid type bushing on the other. This will stop the rear end form moving within the control arms. i run the global west LCA with a sherical end on the chassis side, and a del-a-lum bushing on the chassis. With this setup AND stock uppers i am able to remove the quad shocks, but I have not done so yet.