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The Superlift 4-inch block kit for 1999–2010 Chevy Silverado and GMC Sierra 1500 and 2500 4WD applications provides a 4-inch rear lift using cast iron blocks tailored to these truck models. Included are two cast iron blocks, four U-bolts and all nuts and washers needed for installation, and the kit is covered by a limited lifetime warranty.
Superlift 99-10 Chevy Silv/GMC Sierra 1500/2500 4WD 4in Block Kit
