Husky Liners 03-10 Dodge Ram Dually Custom-Molded Rear Mud Guards sunshade The dual rate spring is

The dual rate spring is slightly softer than stock in the first rate and 75% stiffer in the second rate for more stability with payload or towing

Please refer to the photo above to make sure this kit matches your bumper

The SX 10000SR is engineered to provide users the ideal combination of power

Rear Kit Required to Level the Rear to the Front Height

Husky Liners 03-10 Dodge Ram Dually Custom-Molded Rear Mud Guards sunshade The dual rate spring isHusky Liners form fit Mud Guards are made from durable, impact resistant all weather thermoplastic that's as tough as nails (or rocks for that matter). They're easy to install, conform perfectly to your fenders, and protect your ride and those around you from the rage of the road. Warranty Installation Instructions Installation Instructions