Electronic Units

The 25 tooth gear sits on a peg sticking up on the top of the disk. There is a 15 tooth
gear on the bottom that physically turns the odometer and tripmeter. If you don't
want to do this job again, replace both and never worry about it again.

These photos are not to scale.

25 Tooth gear

15 tooth pod

Manual shifting Saturn
Shift Gromet - $20