Hi Guys!
Can anyone give me a 101 level course on the use of assembly codes on THM400 transmissions during the 1969 model year?
Were these codes sequential, or Julian, or something else?
I have a CX coded THM400 with the following information: 69X - 395
(http://i244.photobucket.com/albums/gg15/nuch_ss396/MVC-005F.jpg)
Did each year start with number 1 and progress from there? What does the 395 designate? Julian date, sequence number, etc.?
What does the 2160 designate?
Help would be appreciated.
Nuch
Check this, Steve: http://www.camaros.org/drivetrain.shtml#TransmissionNumbers
395 is not a julian date. Julian dates goes from 1 to 365. counts the days of the year.
Tom
According to the CRG link provided ( THANKS ED! ), I guess it is a Julian date code. However, it rolls over into the next year.
So this transmission was assembled on the 29th of January 1969. That makes sense because it came from a early March '69 L/78.
Now, the 2160 is a sequence number according to the same link. What exactly is a sequence number? Was it the 2,160th THM400
built that model year, or the 2,160th Turbo-Hydramatic built? Anyone know exactly what the sequence number represents?
Steve
I'm guessing here - Maybe it's the 2160th CX configured TH400 built for 69? ???
GM's use of Julian dates would start on the first calendar day of the car model year (Jan 1, 1968 for a 1969 model) and continue thru the end of production of parts for the 69 model. So if parts production continued into 1969 it would be 366+x days. Its confusing but that how the did it.
1968 was a leap year!
Quote from: Ed Ernst on June 10, 2008, 10:36:06 PM
I'm guessing here - Maybe it's the 2160th CX configured TH400 built for 69? ???
I was wondering about that myself. But with a late January '69 date, could Chevrolet possibly
have built and installed 2159 CX's before mine? Were there even that many?
Steve