Buy 2003 Buick Century Leaf Spring Assembly. Code 9AY, 8AY. Code ABDM, ABD5. Silverado, Sierra Code, Suspension, Pkg - OEM Buick Part # 84855891 (84469779, 84607707, 84754053, 84855886)

Leaf Spring Assembly.
A complete Leaf Spring Assembly containing the master Leaf Spring and graduated Leaf Springs.

Leaf Spring

Fits Sierra 1500, Sierra 1500 Limited, Silverado

Code 9AY, 8AY. Code ABDM, ABD5. Silverado, Sierra; Suspension Code; w/o Mono Leaf; 9AY, 8AY. Silverado, Sierra; w/Performance Pkg.; w/Enhanced Towing Pkg.; w/Z71 Off Road.
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 2003 Buick Century evaluated and have the leaf springs replaced if necessary.