I will post the serial numbers as soon as I find them. I am pretty sure they are H2o lines but I'll bust a fitting to make sure and let you know. As far as the tranny is concerned I believe it is a Hydromatic in that's what the shift bezel says. It's not four speed but three, w/ an OD tagged on after a short driveline. It is cable operated w/ a bunch of wires also. I have not cked it out yet so I don't know the maker etc. The owner says it does work. By the way the engine is a 270 I think but I'll need to scrape off the paint a