Bow Tie Overdrives low end 2004R is $866.
Langdon's adapter is $350.
Driveshaft costs, what, $350?
My mechanic says R&R of a transmission on my 56 would be four to five hours including crossmember re-location. What is unknown is how much other custom fabrication would be required to make the shifter and kickdown work properly. Thats where this swap becomes expensive.
If I found a good working 2004R used then the price would be less.
Anyone done this on a 235?