D60159 Swing Cyl. Pivot (Upper/ Lower) Bushing Fits Case 580B 580C 580D 580EOne New Aftermarket Replacement Swing Cylinder Pivot Bushing (Upper and Lower) Fits Case Backhoe Loaders This aftermarket replacement bushing fits the upper and lower swing cylinder pivot (trunnion mount) on the Model 35 backhoe attachment used with Fits Case (Fits Case IH) 580 and 680 series tractor loader backhoes. The bushing supports the swing cylinder at both its upper and lower mounting points, absorbing load and reducing wear at the pivot