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