Buy 2017 Gmc Sierra 2500 HD 6.0L Vortec V8 FLEX A/T RWD SLE Standard Cab Pickup SPRING. 3/4 TON W - OEM Gmc Part # 23401105 (20909357, 22861267, 23208342, 84320320)

Leaf Spring

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

3/4 TON W/INCREASED PAYLOAD, 1 TON, w/dual rr wheels, code AAFC,AAMA. Silverado, Sierra; 3500 Series; Crew Cab, Double Cab; w/o 9,900 Lbs. GVW.
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 GMC service department to have the suspension system in your 2017 GMC Sierra 2500 HD evaluated and have the leaf springs replaced if necessary.