Rear block kit will put a slight rake back in your vehicle for hauling or towing or lifting. As the ubolts, keep the same quality as your factory components and replace them with ubolts that have the correct specs. Featuring 100% bolt-on installation and a unique design that allows fitment without problems. The kit will not affect your factory OEM ride quality or comfort level.
This kit is for 2500 / 2500HD with Overload (Trailer) Suspension Package & 3500 / 3500HD With Single or Dually Wheel !