The best way to find out which lift kit you need is to measure from the ground to the top center of the your wheel well in the front and in the rear. Subtract the 2 numbers and that is the amount you need in order to level your truck.
Our suspension lift kits are designed and tested to work with factory suspension components ONLY and should never be used on any vehicles with a suspension lift kit already installed. However, our suspension lift kits can be used in conjunction with a body lift.
The reason why we offer our full lift kits higher in the front is to get rid of some of your factory rake. Because your rear is higher than the front from the factory, by raising your truck an uneven amount, it will make it look more level and look much better.
These spacers are offset meaning that they will maintain your stock factory shock angle. This is important because as you lift your truck the angle of your shock may cause your upper control arm to touch your spring. Having an offset spacer will keep this from happening and also keep your ball joints from wearing out prematurely.
Most of our lift kits do not affect your factory warranty because there are no permanent modifications to your vehicle. Dealerships in certain regions have their own policies when it comes to vehicle modifications covered under factory warranty. We always recommend that you check with your local dealership about whether adding our kit will void your warranty.