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

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.

Features and Benefits:

• Increases idler arm support rigidity for improved steering durability
• Compatible with both factory and aftermarket idler supports
• Constructed from 1/4-inch high-strength plate steel
• Precision fitment for 2011+ GM HD trucks (2500/3500)

Vehicle Fitment

• 2020-2025 Chevrolet Silverado 2500 HD Custom
• 2015-2025 Chevrolet Silverado 2500 HD High Country
• 2011-2025 Chevrolet Silverado 2500 HD LT
• 2011-2025 Chevrolet Silverado 2500 HD LTZ
• 2011-2025 Chevrolet Silverado 2500 HD WT
• 2024-2025 Chevrolet Silverado 2500 HD ZR2
• 2015-2025 Chevrolet Silverado 3500 HD High Country
• 2011-2025 Chevrolet Silverado 3500 HD LT
• 2011-2025 Chevrolet Silverado 3500 HD LTZ
• 2011-2025 Chevrolet Silverado 3500 HD WT
• 2015-2021 GMC Sierra 2500 HD
• 2020-2025 GMC Sierra 2500 HD AT4
• 2024-2025 GMC Sierra 2500 HD AT4X
• 2011-2025 GMC Sierra 2500 HD Denali
• 2024-2025 GMC Sierra 2500 HD Denali Ultimate
• 2022-2025 GMC Sierra 2500 HD Pro
• 2011-2025 GMC Sierra 2500 HD SLE
• 2011-2025 GMC Sierra 2500 HD SLT
• 2011-2014 GMC Sierra 2500 HD WT
• 2015-2021 GMC Sierra 3500 HD
• 2020-2025 GMC Sierra 3500 HD AT4
• 2011-2025 GMC Sierra 3500 HD Denali
• 2024-2025 GMC Sierra 3500 HD Denali Ultimate
• 2022-2025 GMC Sierra 3500 HD Pro
• 2011-2025 GMC Sierra 3500 HD SLE
• 2011-2025 GMC Sierra 3500 HD SLT
• 2011-2014 GMC Sierra 3500 HD WT

Specifications