Saginaw 343

[thenonoman]

I have two questions. My 65 C1000 has a 3-speed Saginaw 343. Does anyone have a pdf of a service manual or a detailed exploded view? Any help would be appreciated along those lines.
Second, There is a wire that comes out of the case. Is that the lead for the backup light? If it is, how do I get it to power a backup light since there is no power to the transmission? What am I missing?

[Funky61]

I'd not heard of a 343 Saginaw but here is a bit of what I researched that popped up and I'm not sure if it's your 343 so proceed with caution.
I hope it helps you..



Here is some info I found and links on the reverse switch concern.

Reverse light switch | Chevy Nova Forum (stevesnovasite.com)
Saginaw 3 and 4 Speed Diagram - Chevrolet Transmission Repair Parts (allstategear.com)
https://www.stevesnovasite.com/threads/reverse-light-switch.659279/


Explode view but grainy
https://www.allstategear.com/Saginaw-3-and-4-Speed-Diagram-s/3238.htm




Back up light switch information
Saginaw 3spd to muncie 4spd speedo gear and shifter help. | Team Camaro Tech (camaros.net)

https://www.camaros.net/threads/saginaw-3spd-to-muncie-4spd-speedo-gear-and-shifter-help.176726/

Reverse light switch | Chevy Nova Forum (stevesnovasite.com)
https://www.stevesnovasite.com/threads/reverse-light-switch.659279/



YouTube 5 part rebuild series
https://www.youtube.com/watch?v=8f8Oq8Ok6bw

[thenonoman]

Thanks, some of that I found before I asked the question, but there was some new stuff that was very useful.

I have never worked on a transmission before. Does the reverse switch on the transmission simply complete the negative side of the circuit to light the reverse light?

[Funky61]

NONOMAN, that sounds correct but I'm electrically challenged so hopefully somebody else will chime in.