Is your '49 a stick or an automatic? If it's a stick, you can tow it in neutral. If it's an auto, you'll need to disconnect the torque tube to tow it without damaging the transmission. I towed a '64 Nova from Riverside, California to Boise, Idaho using a tow dolly and had no problems, but I did pull the driveshaft just to be on the safe side. And the '64 uses a standard driveshaft, not a torque tube.