The Mounting Hardware Kit for the Hellwig Load Pro (LP) helper springs include zinc-plated hardware and brackets and is required to be purchased with every LP-25 and LP-35 leaf helper spring kit for proper installation. These kits are vehicle specific to allow the spring kits to mount with no modification.
Load Pro Install Kit Ford 2020-2021 Chevrolet 2500 HD and GMC Sierra 2500HD 2WD/4WD