Can anyone tell me what driven gear I need for the speedo in a 3 Speed hydramatic 1963 F85?

 

http://www.transmissioncenter.org/GM...eter_Gears.htm

Norm

 

Thanks Norm, I tried them, but they're not 100% certain which one to use. At $45 + shipping, I would like to be sure of getting the right one.

Any 1963 F85 owners out there prepared to take a look at their driven gear for me?

Cheers,
Nigel