UMI Performance 15-24 Ford F-150 Complete Lowering Kit (Adjustable Height)UMI's complete lowering kit gives your truck a sleek, aggressive lowered stance with performance to match. UMI brackets, leaf spring shackles, flip kit and coilover front springs are paired with industry leading Viking adjustable shocks to round out the high performance package. Front ride height is adjustable via the coilover while the rear has multiple settings available from the shackle kit. Double adjustable shocks featuring 19 position