overdrive?

[supereal]

I put a Ryan overdrive in my '47 convertible. It mounts on the front of the rear axle. It gives me a 30% reduction when engaged. I don't believe Ryan is still in business, but Mitchell is. Like my unit, it is controlled by a knob or lever and a cable. The Borg-Warner unit will require extensive modification to the driveline, together with wiring for the kick down, relay, and solenoid. My car has a 3:78 axle, and most B-W units use different ratios for different applications. I really enjoy being able to run with traffic on the highways. I suggest you sell your B-W unit and go for the Mitchell, which will bolt in your car.