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Its heavy-duty construction ensures resilience
Represents the best performance-per-dollar leveling system in the Carli lineup
Self-leveling design ensures accurate alignment
After your K&N air filter dries re-oil it with K&N air filter oil (sold separately)
2011-2026 GM HD Rear Leaf Spring (ICO178527) auto-cummins-2010-2012-bulbs Its heavy-duty construction ensures resilienceReplace 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. Features 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
