Files posted by Zed Head
Don't know exactly where I found them. They don't seem to be on nicoclub or xenon or atlanticz. Has some good stuff. 2 supplements. Wiring diagram at the end of each.
A paper by a small lubricants company that actually addresses the GL-4 v GL-5 "yellow metal" synchro discussion
Full 1976 wiring diagram in color, from classiczcars.com member Saridout.
Nissan Technical Service Bulletin identifying ECU's for 1975 - 1994 Nissans