‘83 R107 odometer gear?
 

I think I need to replace an odometer gear if not all three. Can I tell via a number on the odometer/ speedo itself what gear set to get? Also one of the silver dial pivot dots came from the tach needle. What it the best way to re-attach. Thanks.

The number on the bottom of the face of the speedometer will identify the speedometer to the vendor of the gears. One drop of Krazy Glue will adhere the silver cap.