Don't know where your are at, there is a place north of Kalamazoo, Mi. "B J Hydraulics". (269) 623 5136. They rebuild many hydro units, also have many ready to exchange. They ship all over the country. I took one from my Massey to be rebuilt. I was in and out in less than 3 hours. completly rebuilt and tested. They were highly recommended to me by some contractors. Mine has not given me any trouble since their rebuild. Joe