This 4" Performance Suspension System is engineered for 2011-19 Chevrolet Silverado 3500HD and GMC Sierra 3500HD 2WD/4WD models, delivering a rugged and dependable suspension upgrade using Fabtech’s proven heavy-duty design and construction. The system provides increased ground clearance while maintaining proper suspension geometry and a clean, factory-style stance.
The front suspension features high-arched lower control arm crossmembers constructed from heavy-duty 1/4" thick steel for maximum strength and durability under demanding work and off-road conditions. 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 stable handling.
A front differential skid plate is included to 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.
