The Stovebolt Site Forums The Shop Area Driveline Speedometer gear stripped

Gdads51 is right, i had both numbers in my note pad and copied the wrong part number to my forum post.
3707598 is the 7-20 gear set to look for and it should be fairly easy to source used because of how many vehicles it was used in, perhaps even finding a nos should be possible with a bit of time.

the part numbers i posted are from the 1929-1954 master parts catalog, so there could be many newer part numbers to look for if you dig through parts books and do cross referencing in later years.
those speedometer adapters proved difficult to find any information on, i was only able to find the specific ratio of one of them, the other two had to be inferred from their application listing in that part manual.
-s

edit:
found the speedo adapter listed ratios and stampings, it was in the parts manual before the speedo gear sets (the copy online wasn't searchable but browsing it the old fashion way i got lucky.
speedometer adapters group 4.329 - 1565812 ratio 17:16 ( stamped 1563871 ) - will increase speedometer reading by 6.25%
it won't fully compensate for T-Dougs intended tire size, his speedometer will still read about 3% too low with this adapter however it's likely still the best option for his situation.
but now you have a new number to search as many parts on line will probably be listed by the stamped number on the part itself because the packaging could be long lost.