First, thank you to those who have graciously answered my questions to date. You have saved me oodles of time and a bushel basket of twenties.
I have a 1948 Plymouth special deluxe with the original flat six and column actuated three speed transmission. I plan on keeping the original engine as is. The column actuated three speed transmission works fine. The problem is that I want to drive the car long distances on the highway. At sixty-five it sounds like the engine is two seconds from blowing itself apart. (It would make a great sound effect for a single seat propeller fighter heading straight for the ground.)
I have a manual transmission with overdrive for a 1948 Packard. Can I adapt it to the Mopar flat six? Does anyone make an adapter? Would the same clutch work? Does anybody have advice on the plusses and minuses?
What are my other options? What would the other options cost and where can I acquire the parts?
Is there a modern (less expensive?) four speed? What about the gearing for the flat six's presumably lower RPM's and horsepower?
There is a shop in Tallahassee that will cut down the driveshaft if needed.
Many thanks,
Kind regards,
Bern