Code name “Baby”

[rvpopeye]

Good to hear from you !
Sorry 'bout the log in issue ! I'll join you in hoping Kyz spots your post as I have no idea lol .

Wad of complexity might not be as bad as it looks or maybe it is ? Headlight switches have quite a few switching functions so basically just a bunch of circuits that will each need it's own switch if the original is breaking down internally .
Backup lights and P/N fuse could be a number of things . I feel your confusion . Go at it one thing at a time .
A box with a row of switches might be part of the solution .
A wiring diagram should unravel at least some of the mess once you know the wire color/markings .

Tranny pan leaks after multiple tries sucks rocks , A fresh pan with no dents etc.could cure it but try silicone gasket with some set up time before assembly first . ...and as always keep yer mouth closed and goggles for eyes when underneath looking up !

No easy one word solution but you have the skills you'll need !

I have no idea if anyone else is on the forum anymore without checking one at a time for last visit dates but Sternwake and I are still here just about daily .

Sending you some of my heat which is hopefully cooler than your heat .