Marve, could he have a cruisomatic fitted in the 56 and then is later box and i think should have the later gear type? i,m not real sure but just a train of thought. regards bill.

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Bill:



That is what I am suspecting, maybe has had a later transmission installed (ie) 57 Fordomatic or 58 later Cruiseomatic. Both these transmissions take a different driven gear to the 55/56 gear on the cable.

marv

I see this is an old post, but I have a question about the 55 fordomatic speedo gear. Does the bottom picture show the 55 gear for the transmission side? Does both ends of the cable have the same gear? Will Mac's part number 66-27035-1 fit the transmission side. I also have a noisy speedometer, the cable appears to be fine. Could the gear on the speedometer side be bad anyone know the part number for it?

The ‘55 and ‘56 speedo gears are interchangeable with each other but are different from the 1957 and newer gears.  With that said, the picture at the bottom of the previous page shows the transmission gears.  The speedometer end has no gear at the end of the cable.  The square end of the cable or the pronged adapter on the speedometer cable end could be worn thus not allowing the speedometer head to rotate.  The pictured gear on the Mac's site looks correct for the '55/'56 tranny but will not work with the 1957 and newer transmissions.
 

Lorena, Texas (South of Waco)

Thanks for the info Ted. I will be ordering one of those gears to replace the damaged one in the transmission. I have pulled the cable out and the ends look ok. The speedometer rotates with the cable hooked to my cordless drill but makes a loud whining noise and bounces a lot. I have yet to remove the speedometer cluster to see if I can repair the head, I had previously assumed it was the gear on the speedo end making the noise. Any other thoughts on the cause of the noise is greatly appreciated.
Josh

This might help if the link to here works.

http://forums.y-blocksforever.com/Topic141596.aspx

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ