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 Dodge/Mercedes 04-16 Sprinter 2500/3500 w/3in. Springs (multi leaf application only)