Yeah but you were running it with the lockup converter, input and pump. The fluid path is different between the two and it's in the reaction shaft of the pump. The valve body is accordingly different as well. I believe you will need a non lockup single solenoid valve body.
Last year I was running this same set up... 727 pump and input
shaft.. I pulled it out because of a sticky governor
OK, I get what you're saying. It sounded like you just changed all that stuff.
In this case it sounds like there may be a problem in the O/D. I don't have an elements in use chart here, that would help. But if it's locking up in third and not when switching on O/D then I doubt it's the wiring.
