OTC’s 4250 Front Suspension Bushing Adapter Kit and 4254 Rear Suspension Bushing Adapter Kit are compiled for servicing Hendrickson heavy-duty front and rear suspensions. The adapters are designed to eliminate the need to purchase separate tools to service the front and rear suspension systems and replace rusted and frozen heavy-duty bushings. The 4250 kit aids in removing and installing select Hendrickson front suspensions, including Paccar Monoleaf, Navistar Monoleaf and Volvo Monoleaf D-pin pivot bushings. The 4254 kit assists with removing and installing select Hendrickson rear suspension bushings, including Primaax EX, Comfort Air, FCCC V Ride Pivot and D-Pin bushings. The adapter kits include a custom plate designed to provide an exact fit with the suspension pieces and custom adapters to align the tool properly.