2011-2026 Duramax ICON Rear Leaf Spring (ICO178527)

Fits

Replace the worn factory leaf springs on your 2011-2026 GM HD with ICON multi-rate packs. Designed for improved ride quality, better load handling, and increased articulation over stock.

Part Number: ICO178527

• Complete leaf pack for direct OEM replacement
• Provides 0" of rear lift, maintaining stock height
• Reduces rear spring rate approximately 20% on 2500 HD models
• Offers significantly improved ride quality compared to OE leaf springs
• Moves overload transition point further away for better small bump compliance
• ICON Limited Lifetime Warranty

• Will not fit Cab & Chassis models
• Helper air bags are recommended for hauling/towing heavy loads
• Fits single rear wheel models only
• Leaf springs are sold individually. A quantity of 2 are required per vehicle.
• GM 2500 HD models equipped with Max Trailering Package and GM 3500 HD require removal of top overload leaf

• ICON Alloys - 18x9" w/ 5.5" Backspace / 12mm Offset
• ICON Alloys - 20x9" w/ 5.5" Backspace / 12mm Offset
• Tires: 35" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)