Texas is a big State. In Dallas people like to do 70. My 55 has the orginal 235, transmission, and differential. What are the options of simple solutions for staying up with traffic. Or being able to cruise to Austin. Is it as simple as finding a 50s sedan (235 engine) with overdrive and changing the transmissions? If there is such a beast - Would it fit? Do I need to change out the differential gears? What have you guys done? TIA
