Buy 1984 Buick Century Coil Spring Insulator (Front, Lower). Lower, w/twin cam. Suspension Coil Suspension, Springs - OEM Buick Part # 94846149

Insulator. Spring.
Coil Spring Insulator. Spare. Coil. Retainer. Seat. Strut.

Coil Spring Insulator

Fits Nova, Prizm

Lower, w/twin cam.
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 1984 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.