'69 Turbo 400 code?

[Ray Morrison]

Joe,
I have the same information on the tech bulletin dated July 12, 1968. Although the transmissions were called 69's since they were built just as the 68 models were winding down, this 400 transmission they have reference too I'm pretty sure is that of the CY code. The code on the Gibb Nova's are CY, however they do not have the yellow tag mentioned in an earlier post. They are green & silver. An interesting thing on these transmissions that I have noticed is the serial numbers on all that have been located with original documentation start at 100 and go upward with all these being below 50. Example, the serial number on mine is 1005 and the highest one that I have is 1041, presuming this to be number 5 and number 41? The protect-o-plate merely calls this transmission 68C100, but there is a big yellow CY painted in yellow on the upper right of the bell housing. The metal tag on the side of my transmission reads CY 68 1005. As far as the stall speed on the original Cy transmissions, I think it was somewhere around 2,000 rpm. These things were pretty tight. It is also my understanding that the CX transmission introduced on October 25, 1968 had a higher stall converter, and just a couple of small modifications to that of the CY. The transmissions built for the Gibb cars were built in June, which was just prior to the first 2 weeks of July that the Gibb Novas were all built. I would be interested to know what application that the CY transmission being discussed in this thread and the build date of that application to see if there may have been some cars built between the Gibb cars and the introduction of the CX transmission? Ray