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Hellwig Load Pro mounting hardware kit for GM 3500HD cab and chassis includes zinc-plated hardware and brackets and must be purchased with every LP-25 and LP-35 helper spring set for correct installation. These vehicle-specific kits let the springs mount with no modification. Fitment targets 2011–2018 GM 3500 HD cab and chassis (2WD/4WD). Limited lifetime warranty applies.
Hellwig 11-19 Chevy Silv 3500HD Hardware Kit for Load Pro Multi Leaf 2500lb/3500lb Helper Springs
