I have a few questions regarding my Mitsubishi tractor I was hoping someone colud answer. I need to replace the radiator cap -what pound pressure do I need to get? I think I also need a thermostat. Does anyone know if it is a specific odd size? Also, does anyone know what kind of lubricant I need for the gear case and to what level I need to fill it? I can see the lubricant down in the case, probably six or so inches down but don't know how high to fill it. Does anyone know where you can buy a repair manual. I looked a few years ago but could not locate one. Thanks in advance for your help.