slack ajuster We have the trailer parts, axles to be exported ... parts are as follow: Twist lock, fifth wheel for York and Yost: 2, 3 1/2, Kin pin are of the ... 2" and 3 1/2". The suspension axle, adjustable rod, fixed rods ... hubs used for York etc and KIC series. we can supply high quality landing gear,slack adjuster,twist lock,leaf spring,fifth ...