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.
Hellwig 20-21 Chevy Silv 3500HD Hardware Kit for Load Pro Multi Leaf 2500lb/3500lb Helper Springs
Load Pro Install Kit GM 2020-2021 3500HD Pickup Single Rear Wheel
Leaf Helper Spring Hardware Kit
Load Pro Install Kit
LP MOUNT HDWRE KIT
Hellwig 25318