The older IH Cub Cadet service manuals have the dimensions to make a jig to support the hydro unit for repair. If you have not taken one of these units apart....read the service manual! Thoroughly clean the outside. Make sure your work bench and tools are clean. Once the valve body is removed, carefully remove the upper rotating group and try to keep that assembly together. There is spirol pin that connects the trunnion arm to the swash plate....DO NOT try to push pin all the way out. Also, note the position of the swash plate....there is thicker and thinner stops casted into the swash plate...it makes a difference if it is installed backwards. Do the repair then inspect everything, use the same hydraulic oil you use in the sump to lubricate the rotating group and swash plate. BTW, when the swash plate is removed take out the spirol pin. Have fun and good luck.
