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 2011-2026 F250/F350 2016-2026 F350/F450 Pickup Dually 2WD/4WD and 2016-2026 F450/F550 Super Duty Cab & Chassis w/ 3" Springs. See Vehicle Fitment.