Guess few actually read your post. The body number (sic) on the trim tag depends on what plant the car was built at.
Atlanta - Body number on tag is matched in box 8 of the build sheet,
Baltimore - Body number on tag is NOT body number shown on build sheet but rather the first 6 digits of the data processing number in box 24.
Van Nuys - Body number on tag is like Atlanta
Flint - Body number on tag is found on Chassis and Body Broadcast Copy sheets.
Kansas City - Body number on tag is like Baltimore.
See 1970 Chevelle Trim Tags
for examples of some plants tags vs. build sheet body number locations.
The body number on the tag is not stamped anywhere on the body or chassis.
There is a partial VIN normally stamped on the firewall behind the heater box as noted and was supposed to be stamped on the frame but that didn't always happen - should also be stamped on the transmission case. See Partial VIN Locations
I want to verify two things on the 70 chevelle, the Fisher Body number on the tag and the VIN on the Body of the car.
The Fisher Body sequence number on the tag, -is there a copy of the sequence number stamped on the actual body of the car some place to verify a match?
The VIN Tag number, -is their a partial VIN number some where on the actual body of the car? I heard someplace on the firewall and on the rear of the Frame?
Thanks for the tips and help in advance!