Put TH400 back in, won't shift

[cppursell]

Well, I've been creating several threads with different issues of my friends' '63 C10. It started with putting a new engine in (which is running great now, woohoo). When attaching the transmission he broke the pump, which he replaced and now the car moves, but: It won't shift out of first gear! My friend has an idea that the solenoid on the transmission for the electric kick-down might be causing it, but I haven't a clue. Can you pros help?

Thanks!