I was gutting my 66 and taking out the instrument panel, when I removed the speedo, the odometer fell out. I think I am missing a piece to hold the odometer in. Does any one sell factoryreplacement speedo/odometer gauges?

 

most mustang venders sell them, I got one from NPD it looks real nice but since I need the gear in the trans. I couldn't tell you how well it works.

 

You can also pick up old instrument panels on Ebay pretty regularly. There are two screws that hold the odometer in.