[JohnG]

My speedometer was not working, and replaying the cable did not work.
When I opened the gearbox the speedo drive was missing.

Now I am looking for a few part numbers:
I believe in my truck sits a sm420 4 speed gearbox.

I am looking for the speedo drive gear. Indicated as 4.337 speedometer gear on the picture. Are they available anywhere?
And I would like to renew the (Rear) oil seal on the gearbox.

Appreciate all help.