19 tooth speedometer gearwhy it chew up the teeth?
Short answer..it's nearly 60 years old. Plain worn out.
if it's a parts problem, try: tee-bird.com tbirdhq.com
Is the transmission output shaft bouncing around? Could it be the wrong gear? How about the lubrication of the speedo cable and checking for kinks? Just some thoughts.
Looking for a Used Thunderbird in your area?
CarGurus has 1,098 nationwide Thunderbird listings starting at $6,950.
Search Ford Thunderbird Questions
Ford Thunderbird Experts
Related Models For Sale
Used Cars For Sale