When lifting the 100 Series Land Cruiser, the Constant Velocity (CV) joints are put on an increased angle, helping to accelerate the wear on the joint and putting additional stress on the CV boots that will lead to splitting and premature failure of the CV. The SuperPro bolt on kit corrects the geometry of the front axles and CV's by lowering the front diff approximately 25mm. Reducing the angles the CV joints are operating at will help avoid the expensive replacement costs of CV's and boots. This wear is accelerated further if larger & wider wheels and tires are fitted.