Upgrade your Chevy Silverado or GMC Sierra 2500HD / 3500HD (2WD & 4WD) with a complete, properly engineered leveling kit built around proven Cognito suspension components. This bundle removes all guesswork by combining geometry-correcting parts, steering reinforcement, and premium shocks into one cohesive system designed for durability, ride quality, and long-term performance.

At the foundation of this kit are Cognito SM Series Ball Joint Upper Control Arms, engineered specifically for lifted and leveled GM HD trucks. These control arms correct factory ball joint angles, increase allowable droop travel, and ensure proper suspension motion—resulting in a smoother ride, improved handling, and extended component life.

Constructed from fully welded, boxed sheet metal and finished in a semi-gloss black powder coat, the SM Series UCAs come fully assembled with maintenance-free heavy-duty ball joints, polyurethane pivot bushings, and new crush sleeves for a true bolt-on installation. Increased droop travel is critical for optimal ride quality and ensures all suspension components work together as intended.

Cognito forged torsion bar keys level the front of the truck to match the rear while maintaining factory reliability. Their forged construction makes them extremely durable, and they install easily using OEM mounting points—no cutting or fabrication required.

GM HD trucks are known for pitman and idler arm wear, especially when larger tires and suspension changes are added. The Cognito PISK (Pitman & Idler Arm Support Kit) addresses this long-standing issue by reinforcing the steering system and eliminating forward and rearward center-link movement. Using Cognito’s patented design, the PISK significantly improves steering durability, precision, and longevity under real-world driving conditions.

This kit is completed with King Shocks OEM Performance Upgrade shocks, delivering race-proven technology in a 100% bolt-on package. These shocks are engineered through extensive real-world testing to dial in optimal damping curves and spring rates for GM HD trucks.

Featuring large 2.5-inch diameter shock bodies and external reservoirs, King shocks dramatically increase fluid capacity and heat dissipation, ensuring consistent damping even under heavy loads and aggressive use. The system provides:

• Adjustable front ride height

• Up to 25% increase in front wheel travel

• Approximately 15% increase in rear wheel travel

• Fully serviceable and re-valvable design, just like King’s race-winning shocks

Installation is straightforward with no cutting or welding required, making this an ideal upgrade for daily drivers, tow rigs, and off-road builds alike.