I need a lift pump for an 88 diesel. The pump I have has the removeable nuts on the top of the pump. I removed the nuts and the check valves are worn and do not operate properly. Korves oliver sells diesel lift pump repair kits but I believe it is for a later style pump than I have.  Does any one know of any place that has reman pumps or where you can get parts for the style pump that I have? I have heard the only option at this point is to get an electric pump.