Model A 2 speed Overdrive?

A friend of mine is looking to find/buy a nice '29 Ford 2 door sedan. He found what he wants in Chico Ca. BUT the guy doesn't know much about it except it has an electric overdrive? Is this stock, aftermarket, or?
Anyone know of a nice, black, stock as hell '29 A 2 door sedan for around $7500 -10k'z? Anyone in Chico Ca. want to inspect said "A"? Thanks

 

He might be referring to a columbia 2-speed rear axle

 

There is a A/M overdrive out there for a Model A. You have to cut the torque tube and shaft to install it. I think "Mac's" A Parts sells it in New York State. They could be a source of Info.

Tinbasher

 

it may also be a mitchell unit. new aftermarket, but i have heard very good things about them. i have also heard of using one from a volvo and putting it in the middle of the torque tube. i don't know much about this conversion, but i have seen it done.

 

Gear vendors OD?

 

Not 100% sure, aren't 2-speed columbia rear axles vacuum actuated?

 

If electric, it is probably a '50's BW OD spliced into the torque tube...common mod, commercially available though the parts are getting rare. People also spliced some sort of British one, Laycock I think, from old Volvos.
Now...Mitchell makes a bolt-in mechanical one, spliced into a new tube, and Gear vendors sells a unit that comes with adaptors to help get it into a tube.

 

Thanks to all , will have pic's & more info soon.
Bruce, sorry for your loss and want to thank you for all your positive contributions to the HAMB and it's followers................ Lon