We are proud to offer you our Supreme Suspensions Lean Spacer made completely out of Carbon Steel. Uneven suspension height, or "lean" is a common issue. Most Chevy/GM vehicles have a lower static ride height on the driver side, typically 0.5" to 1" lower than the passenger side. This problem is attributed to extra vehicle components being located on the driver side of the truck. The fuel tank, battery, steering column, the driver, etc. Many owners end up going down a rabbit hole trying to find a solution, including expensive options such as larger or stiffer springs on one side to compensate for the weight distribution. Supreme's lean spacer is a perfect addition for your Chevy/GM, providing a quick and simple installation to remedy uneven ride height. The spacers can be used on stock suspension and with most aftermarket leveling and lift kits.