Based on the model number , you are likely referring to the Bilstein 5100 Series Rear Shock Absorber . This is a very popular upgrade for trucks and SUVs (particularly Toyota Tacomas, Tundras, and GM vehicles), used to improve ride quality and accommodate lifted suspensions.
A: Yes. Lowering by more than 1.5 inches changes the motion ratio. You will need to increase rebound damping by 2-3 clicks to compensate for reduced bump travel. br 3021 shock manual
, the rubber absorbing the kinetic energy exactly as the manual dictated. BR 3021 Based on the model number ,
The manual includes a specific chart for vehicle weights. For example: Use serial number: Find a 6–8 digit code
: Required for equipment fitted above the waterline . The requirements are slightly lower but still rigorous, at 50g (vertical) and 22g (lateral) . Why Does It Matter?