Here are three links for you.
It seems there may be a 90 degree turn involved for installation, and removal.
https://www.ctci.org/bench-checking-...rive-solenoid/
https://www.ctci.org/gilsgarage/test...n-the-vehicle/
This one is a 19 page Service Manual for the OD transmissions.
http://www.oldwillysforum.com/forum/...riveManual.pdf