Cognito GM HD Idler Support Frame Gusset Kit 2011-2025 Silverado/Sierra 2500/3500 2WD/4WD

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This kit adds critical reinforcement to the idler support area of the frame, helping reduce flex and wear under load. Made from 1/4-inch plate steel, it improves steering stability and durability—especially on lifted or hard-used trucks. Designed to work with both factory and aftermarket idler supports. Show more