Product used to restore the factory caster angle of the steering knuckle in the front axle when using a 3-6 inch suspension lift. The drop boxes lower the front control arm mounts and gearbox, restoring the factory suspension settings. Additionally, they extend the front axle forward, eliminating the possibility of the wheel contacting the fender. Corrosion protection - galvanic zinc coating Powder coating optional Essential for lifts from 3 to 6 inches Aesthetic and durable construction. Very durable product with a thickness of 8mm! Universal set - fits Y60, Y61 GU1-GU4 models. Price is for 2 pieces - a set for one car. Includes bushings, washers, and necessary grade 8.8 mounting screws.