C6 and cruise o matic

just being lazy but i have a cruise o matic in my 62 galaxie and i was wondering if anybody knew of the top of their head if those are a 31 spline on the output shaft...seeing if the slipyoke will fit my new c6 im swapping in before i tear into the project?

 

The output shaft from my 58 COM fit my 66 C-6,I did not count the splines. Some interchange and some don't.
I have read that the drive shaft does not need to be modified for the COM/C-6 swap, but mine was 1 3/8" too short.

 

shoot i hope thats the case, because that will save me a bunch of money