wiring 53 hy-drive transmission

i am rewiring my car and the trans has a switch facing the side and one facing the rear axle .
is one for back up lamp and the other for overdrive?
and if so which is which.
if i had funds for a manual i would not be asking
thanks

 

To the best of my knowledge, Hy-drive Plymouths were not ever equipped with overdrive.

But it IS a manual transmission, it's the Fluid Coupling/Torque Converter that is the problem.

Ray

 

,can you identify the switches ?
i am that close to done,cannot wait to drive this weekend