This 4" Performance Suspension System is designed for 2011-19 Chevrolet Silverado 3500HD and GMC Sierra 3500HD 2WD/4WD models, delivering a strong and dependable suspension upgrade using Fabtech’s proven heavy-duty construction. The system increases ground clearance while maintaining proper suspension geometry and a clean, factory-style appearance.
The front suspension utilizes high-arched lower control arm crossmembers constructed from heavy-duty 1/4" thick steel to provide maximum strength and durability under heavy-load and demanding driving conditions. Fabtech ductile iron steering knuckles are engineered to retain a near-stock track width, keeping the tires properly positioned under the fenders.
A front differential skid plate is included to protect critical drivetrain components from road debris and off-road obstacles. Rear lift is achieved using a block and U-bolt configuration, maintaining proper ride height, load support, and overall suspension balance.
