Buy 1997 Buick Century Leaf Spring Assembly. 1 TON, w/o dual rr wheels. 3/4 TON W/INCREASED PAYLOAD, 1 TON, Dual, Rear - OEM Buick Part # 84992015 (84320319)

Leaf Spring Assembly.
A complete Leaf Spring Assembly containing the master Leaf Spring and graduated Leaf Springs. Part has related components that cannot be reused/ reinstalled; U-Bolt, nut, washer.

Leaf Spring

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

1 TON, w/o dual rr wheels. 3/4 TON W/INCREASED PAYLOAD, 1 TON, w/o dual rr wheels. Silverado, Sierra; 3500 Series; Regular Cab. Silverado, Sierra; 3500 Series; w/o Dual Rear Wheel.
Suspension Leaf Spring - Repair or Replace
Your leaf springs are not especially prone to failure, but excessive rust can make them more prone to failure. Contact your local Buick service department to have the suspension system in your 1997 Buick Century evaluated and have the leaf springs replaced if necessary.