Buy 2011 Gmc Sierra 2500 HD 6.0L Vortec V8 FLEX A/T RWD SLE Crew Cab Pickup Coil Spring Damper. Cobalt Piece, Two, SS, Prone - OEM Gmc Part # 19352221 (22697918, 22697919, 22734495, 25993736)

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

Coil Spring Damper

Fits Cobalt, G5, HHR, Ion

Cobalt. COUPE, one piece. COUPE, two piece. G5. Ion; 14"/15" Wheels. Ion; 16" Wheels. Ion; All. One piece. SEDAN, one piece. SEDAN, two piece. SS. Two piece.
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 2011 GMC Sierra 2500 HD might benefit from replacing the strut springs. Excessive rust can make the springs more prone to failure. Contact your local GMC service department to have your suspension system evaluated.