I'm in the middle of a frame-off restoration on a '49 3100. I've been handling and moving these parts individually for the past year. Following is an educated guess...
Frame only: 300 lbs (two men can lift and move it)
Engine: 400 lbs
Transmission: 150 lbs (I can lift and move it myself)
Torque tube and drive shaft: 150 lbs. (same as above)
Rear differential, axle, and axle shaft: 200 lbs. \
Total weight: 1200 lbs
4 Wheels, leaf springs, and front axle: add another 300 lbs.
Total rolling chassis weight is about 1500 lbs.
