GMC Sierra 2500HD Suspension Lift Kit - Front - Cognito - 3in Standard SM Series - 20-25. This front leveling system adds 3 inches of height while maintaining proper geometry and confident drivability on 2020-2025 Sierra 2500HD models.

Engineered to reuse your OEM front shocks, the kit includes spacers that establish the correct droop stop. Cognito SM Series upper control arms provide a corrected ball-joint angle to manage added droop, while torsion bar adjuster keys let you set ride height precisely. A 1-inch rear block and u-bolt set is included for trucks carrying permanent bed weight (such as toolboxes or transfer tanks) to recapture stock rake. Cognito’s approach preserves droop travel—at least 3 inches—so leveling height comes without compromising ride control. A pitman and idler arm support kit is not included but is recommended for steering component longevity on IFS trucks.

Features

• 3 in front lift for 2020-2025 GMC Sierra 2500HD, 2WD/4WD
• SM Series upper control arms with improved ball joint angle
• Front shock spacers retain factory shocks and set droop stop
• Torsion bar adjuster keys for precise ride height
• Maintains minimum ~3 in droop travel for ride quality
• 1 in rear block and u-bolt kit for load-compensation

Have questions or want build guidance? Call our experts. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA).

Buying multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

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