I have a hydraulic leak at the smaller pipe from the pump where it inters the rear end case on the right side. It must be a return line because it only leeks when I lower the 3 point. I disconnected the fitting from the larger fitting on the tractor and there is a flat seal the would take the place of an O ring I thought I would find. I was afraid to take the seal off because I don't know if I can without destroying it. I'm not sure I can find a new one. Does any one have a parts book that shows that seal. and if it is sold by it's self. That pipe might come with the seal. Doesn't seem to slide off and it's hard to see. Hopefully One of you all has been there and can give me some of your experience and a part number. I found the pipe but it is a two piece that comes with a different single attachment at the ends. Mine is two separate pipes. Thanks