Speedometer not working odometer working

[tattooboy37]

63 C20 3 speed manual transmission w/ column shift.

I haven't been able to figure out whats going on since the odometer works while driving but not the speedometer needle. Then when I pull out the cable from the tranny and spin the cable end it moves the speedometer needle.

Why one but not the other since both connections seem good.

Shouldn't the odometer not work if the gears inside the tranny weren't spinning the cable to move both it and the speedometer. I could see it being inside the tranny since I can get the needle to move by hand, but since the odometer works while hooked up that doesn't make sense. Plus I could see it being on the dash side if the needle didn't move while unplugged from tranny, but since it works that doesn't make sense either.

Please its been driving me bonkers.