.....X's 2I always thought they had 13 teeth in 1954, and all after that were 14 teeth. I believe '54 Ford and Mercury also had a slotted oil pump drive and after that were all were a hex drive.
Sal
You're welcome.Thank you Dmsfrr. I never actually saw the slotted drive shaft. Now I know what they look like.
Sal
You're welcome.
I'll let you in on a little secret....
ebay is a great backup source for photos of most parts.