Shop 1991 Buick Century Coil Spring Insulator (Lower). All. ATS; Lower. ATS; Lower; w/o V-Series; Left Left, SUSPENSION, REAR - OEM Buick Part # 84570395 (84369477)

Insulator. Spring.
Coil Spring Insulator. Coil. Retainer. Seat.

Coil Spring Insulator

Fits ATS, Camaro, CT4, CT5, CTS

All. ATS; Lower. ATS; Lower; w/o V-Series; Left. ATS; Lower; w/V-Series; Left. Camaro; Left. Camaro; Left; w/o Extreme Track Pkg.; Left. COUPE,. CT4; Lower; Left. CT5; Left. CTS-V; Left. CTS; w/o Sport Suspension; Left. CTS; w/Sport Suspension. FE2, FE4 suspension. FE3 suspension. Sedan,. W/O VARIABLE DAMPING. W/VARIABLE DAMPING. W/VARIABLE DAMPING, w/o perf. package.
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 might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local service department to have your suspension system evaluated.