These complete rear axle flip kits will take your ride to the next level. Need a way of lowering your truck for an air ride kit, or to level out a drop? Here is your answer. Flip Kits include all the hardware to flip your axle, notch your frame to give that extra travel you need with a slammed ride. Bump stops included. Welding will be required for installation of the c-notch, pickup a bag of hardware to make this kit 100% bolton.