I have a copy of the Borg Warner R10 overdrive Service Manual and Operators Manual. They each have a unique wiring diagram and I'm wondering which one is correct. Perhaps the wiring was changed from 1955-1957? My question is in reference to the ground out wire that goes from the kick down solenoid to the distributor/coil.

In one it goes from the kick down solenoid to the dist. In the other it goes from the solenoid to the coil. Here is a picture of both.



2 wiring diagrams

Thanks,
Brandon