Chevelle Frames

File Photo
I know this is correct for 1967 Chevelles and may also be correct for 1964-1966 model years as well. If this is not correct for any 1964, 1965, or 1966 models, please contact me and if you have a photo or scan of correct frame, please let me know and I'll include it.

File Photo
1968 through 1972 Chevelle frame dimensions.

Frame Interchanges

Frame Interchanges - 08/12/2009

Group 7.003 - 02/01/2009 Excerpt from Chevrolet Parts & Accessories Manual, circa 1972.

Frame Concealed VIN (CON VIN) Locations

File Photo
Typical CON VIN located on the driver side rear on top of the rail and very difficult to read except with a mirror. Generally, the manufacturer's ID and date code are on the outside of the rail and is visible. Remember the CON VIN will consist of the division (depending on the year), the model year, the final assembly plant and the six digits of the sequence number. For example, a typical CON VIN might read 19K345678 for a Chevrolet (1), 1969 (9), Kansas City assembly plant, and vehicle sequence 345678. 

Other locations for the CON VIN stamping on frames reported are ...
(1) driver side below door on top of frame on both 1964 and 1965 Chevelles; 1969 Fremont El Camino; 1966 Fremont El Camino (as well as 'typical' location)
(2) passenger side front inside of frame rail on 1970 El Camino
(3) passenger side rear frame rail, both top and outside - 1970 Atlanta & 1970 Baltimore

As more and/or different locations are reported, I'll update the photos and information.

File Photo
CON VIN vs. the manufacturer's ID and date code locations.

File Photo - 03/05/2009
Late model Parish frame with frame chart part number 3960733 and date of November 21, 1969 - 2nd shift.

File Photo - 03/05/2009
Early model Parish frame with frame chart part number 3893329 and date of April 5, 1967 - 1st shift.

File Photo - 03/05/2009
A.O. Smith frame with frame chart part number 3876901 and date of March 1, 1966 - 2nd shift.

1968 Parish Frame - 09/01/2009 - Dave Meehling
Parish frame with frame chart part number 3908663 and date of March 5, 1968 - 1st shift

Courtesy Curt Biro - 08/01/2009
A.O. Smith frame with frame chart part number 3960739 and possible date of May 20, 1970. If you can shed any light on the date and meaning of C2, please contact me.

Hayes was a frame manufacturer in 1969.  This example shows their name and number across the rear brace on the driver side as opposed to the side rail.

Hayes - Courtesy Albert Galdi