I guess the point that has been missed is the poster was adamant that there was no OD transmission offered in his year truck.
Even if it was the case, why should that matter? If he is building an exact numbers matching 1000 point show truck he wouldn't have a passenger car 4 speed in it. Any 3 speed overdrive from 55 through 65 will bolt right in and no one would care.
Many of the OD units that I rebuild are passenger car units.
Of those most are installed in trucks with bolts as Mike
mentioned.
Fred
