Assuming you have removed the factory shocks, here is how to install the BR 3021 per the official manual.
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. br 3021 shock manual
Before installation, manuals for heavy-duty shocks like the BR 3021 emphasize the following: Assuming you have removed the factory shocks, here