I have just installed a 4spd transmission in my 77 f150 in place of an c6 automatic and now I want to have my reverse lights work again. I see the plug on the transmission, but where do I splice into to get the reverse lights to work. Thanks for any help.

 

I am not sure of what the C6 setup did to turn on the backup lights. But if you can find the switch, connect the wires to the switch on the 4-speed. Should be simple to do.