While using your existing Pin & Bushing Starter Kit, easily remove and install the Meritor Tri-Functional bushing while the suspension remains on the trailer. Machined components manufactured from high-grade metals for strength and durability Black oxide finished coating resists corrosion Notes Kit must be used with the Pin & Bushing Starter Kit or can alternately be used with our 20 Ton Hydraulic Cylinder. When utilizing the Hydraulic Cylinder, a hydraulic pump will still be required.