The PowerStop pin boot and bushing kit for Ford F-350 Super Duty (2003-2004) is described as the brake hardware kit applicable to those model years. Identified in the source for the 2003–2004 F-350, this overview states the kit's vehicle-specific fitment and frames it as the referenced hardware option for brake service or replacement on the listed trucks.
Power Stop 03-04 Ford F-350 Super Duty Pin Boot/Bushing Kit