Fabtech 11-19 GM C/K2500HD/3500HD 4in Ultimate System w/Uniball UCA & Perf. Shocks

If you're looking to give your 2011-2019 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD/3500 HD a noticeable lift and improved off-road performance, this 4-inch Ultimate System from Fabtech is a solid option. It's designed to level out the factory nose-down rake, giving your truck a more aggressive stance right out of the box. This kit aims to enhance your vehicle's suspension travel and capability for tackling rougher terrain.

At the heart of this system are the Uniball Upper Control Arms. These aren't your typical control arms; they're constructed from .120-inch wall 4130 Chromoly tubing and use 1-inch FK Stainless PTFE Uniballs. This robust construction is intended to handle the demands of increased wheel travel, up to 9 inches in the front, without binding. The kit also includes heavy-duty ductile iron steering knuckles and forged torsion bar keys, which provide the necessary lift while maintaining proper CV joint angles. For the rear, the system levels the truck without altering the factory rear suspension, though an optional 1-inch rear block kit is available if you prefer a slight nose-down appearance.

To further boost your truck's off-road prowess, this system comes with Fabtech's Dirt Logic 2.5 Coilover shocks for the front and Dirt Logic 2.25 shocks for the rear. These shocks are tuned for extensive ride adjustment, aiming to provide a significant increase in off-road suspension performance. The Uniball Upper Control Arms are designed to attach to the factory spindle without requiring any drilling, making installation more straightforward. This kit is a comprehensive upgrade for those wanting to improve both the look and the off-road functionality of their heavy-duty GM truck.