Buy 1985 Buick Century Coil Spring Damper (Rear). HHR. LS & LT. Suspension Coil Spring - Repair or Suspension, LS, LT, Make - OEM Buick Part # 25993737

Spring. Bumper.
A component (mounted in the center of the Spring) which cushions the Spring as it is compressed. seat. Assembly - Suspension Jounce. Auxiliary. Coil Damper. Stopper. Vibration Damper.

Coil Spring Damper

Fits HHR

HHR. LS & LT.
Suspension Coil Spring - Repair or Replace
Your coil springs are not especially prone to failure, but if they have been cut, clamped, or heated to have the vehicle lowered, your 1985 Buick Century might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local Buick service department to have your suspension system evaluated.