These are GENERALLY IN STOCK, READY TO SHIP!!
When you lift the vehicle (whether with a lift kit, or even just to change a tire), as the trailing arm and control arms pivot, they become shorter just due to basic geometry. This pulls the trailing arm inward (adding toe), and pulls the control arms inward (adding positive camber). It also drops the differential which changes the angle of the driveshaft and CVs. Since the subframe is connected to the unibody, as the body goes up the subframe goes up, but the arms are connected to the hub, which remains static. A spacer will drop the subframe as it goes between the subframe connection points (4) and the unibody, canceling out the geometrical effect of the lift. .
HIGHLY RECOMMENDED FOR LIFTS OVER 1.5”