1969 - Where are the gear ratio, Code Letters located on the rear end. I jacked up the car, slid under there but could not see any Code Letters. Can anyone give me a location or area I can concentrate my search on? Please, no guesses. Parts place is waiting for the code. Thanks, j

 

Page, OA-2, of the '80 Corvette Manual.
"On bottom surface of carrier at cover mounting flange."

 

Sorry, I missed ya, it took 16 minutes from when you posted, but I was on another post.