its a columbia 2 speed. Another way to get an overdrive. Very desireable among V8 enthusiasts. To put one on a model A must have required some adaptations. Do you have hydraulic brakes?
Parts are available from John Connelly
box 891311 Temecula Ca 92589
phone: 951-719-4077
email:
[email protected]
www.columbiatwospeedparts.com