I'm in the process of rebuilding a one, maybe two, or three, not sure, FC5W71B transmissions.  It's just about the LAST thing I have yet to do on (to?) a Datsun. Always thought it was too hard and needed too many special tools. It's not. I want to record details of what I found and did along the process, but not in the usual way.  -I will NOT take a video of the whole process. There are plenty great ones on YouTube. I WILL record the URL's of any helpful video's I find to help cen