My 1963 bug goes into gearwhen clutch is disengaged but the car doesnt move...
So either the clutch is worn out or you have an internal transmission problem.
Do you have any clutch pedal free play?
You should have at least a 2 inch travel before you feel the tension start, if there is no free play you can try adjusting the clutch out some. The adjusting lock nut and adjuster are on the drivers side of the transaxle upper side, once you under the car you can see it where the cable goes through the clutch lever.
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