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The Superlift rear component box is the knuckle-kit rear section for a 6-inch lift, supplying the rear suspension pieces used to achieve and support lift height on heavy GM pickups. It’s intended for use with Superlift knuckle-style lift systems. Fits rear applications on 2001–2008 Chevrolet Silverado and GMC Sierra 2500HD or 3500 4WD; consult fitment guidance for exact vehicle coverage.
Superlift 01-08 Chevy Silv/GMC Sierra 2500/3500 HD 4WD Knuckle Kit 6in Lift Component Box- Rear
