H&R drop distances are based upon a 3.0 liter 6 rather than the heavier 4.8. In reading this chain and others you will find that the 1.2 kit actually lowers the front of a 4.8 car about 1.75" (the same results as I got). The H&R rear links only drop the rear 1"; I used Loweringlinks to drop the rear 1 1/2" so that the car sits totally level. The 1 1/2" rear drop is about as far as you can go without destroying the car's ride quality.