3943331 S 191
12 23 S2 XK

I have been unable to find this part number referenced and am curious about the XK. Any help?

BTW, this is off a '69 Chevelle.

TIA

fyi

http://www.synthetic-oil.com/images/frame-man.jpg

I have that info, but thanks. The listing of frame numbers in 7.003 FRAME ASSEMBLY does not have mine listed. It lists frame number 3992389 for 69-72 Chevelles. I suppose my question should have been: was this frame number used exclusively for these years and, if so, why is mine different and what is it from?

I will assume that 7.003 is not an all inclusive list until I am told otherwise.

Thanks.

Is it possible it's another A-body frame such as Buick, Olds, Pontiac? Also, I've found that a GM parts book (I have an original one I salvaged from Chevrolet when I worked the parts counter in '72) show replacement item part numbers, not always the part number that came from the factory. If your resource is like mine, it also has a note: "When using these frames on a Spt. Cpe. and Sta. Wag., transmission support 3949152 must also be used." The same note is listed for 68-72 (Sta. Wag., El Camino) frame, part number 6263665. Odd, too, that the Chevelle (2-Dr., exc. El Camino) frame (#3992389) sold for $203.70 while the Elky and wagon frame was only $177.60.

The "XK" identifies it as a spoirt coupe frame as per block 11 of build sheets.

The factory part number is rarely found in the parts books.

The only way to know if the frame is a 1969 is to look in the factory assembly manual and see if it match's part numbers listed.

The XK is called the broadcast code and I have a 1969 Z25 chassis broadcast sheet and it listed the frame as XK.

Keep in mind the a broadcast of XK may carry more than one part number. I they made any changes in the part, it the number would change but the broadcast code may not.


They are called broadcast codes because thats the terminology they used in the assembly plants. Meaning the vehicle and all components and parts numbers to built it was broadcast to all of the assembly plant operations, for production.

Also, a service part may not carry the broadcast code of XK (or any for that matter) but thats not to say any production parts that does not have is not a OEM factory used part.

Here is the only other post I could find with a '69 frame #3943331
http://www.chevelles.com/cgi-bin/forum/ultimatebb.cgi/topic/35/1802.html?