Your partly correct Gabby.
Early 400 does have a different setup. The tractor I was taking it from had a serial 193 something. I checked a few times looking at both machines and figured it should work.
I would think the tubing will need to be tweaked some, but I'm not worried about that now.
I need to get that valve to move, lol.
Otherwise I'm sol, lol.
Any suggestions on freeing up those valves?