I'll try to get out to the shop and take some pictures. It's been a while sense I looked inside one. I think I have the solenoid that we repaired on the trans I'm working on. I'll also make sure I have the lever position right.
In '67 I think Chevy went to the Saginaw 3 speed OD. Yours is what they used before that. It'll do fine. I have one of those in the pile.

"I wonder if God created man because he was disappointed in the monkey?" Mark Twain