Once you have the manual open, the first section focuses on inventory. The BR 3021 kit should include:
The manual emphasizes inspecting the piston rod for scoring. If there is any nick or dent, the high-pressure nitrogen charge will leak. Do not proceed with installation if damage is visible.
The Bilstein BR 3021 is a monotube, gas-pressure shock absorber designed for lifted trucks and SUVs. It features a zinc-plated finish for corrosion resistance and is valved specifically for the weight and dynamics of heavy-duty vehicles.
Push down on each corner of the bumper. The BR 3021 manual states that the vehicle should rebound to its static height in 1.5 oscillations. If it bounces more than twice, increase rebound damping. If it returns too slowly (like it’s stuck), reduce rebound.