These pictures show a GM replacement dip stick I purchased about 10 years ago during my restoration. My car is a Norwood 69Z, built 05A, 1st week of May.
The dip stick is GM P/N-3951576, round handle with green tip, stamped with "M". The previous owner(s) of my car had customized under the hood with a lot of gloss black and chrome. The dip stick was not a GM original so I am not sure what original 69 dips sticks looked like.
Is it possible that the replacements had flat handle and replacement had round?
Does anyone with an original car or survivor have the original dip stick they can take pictures of? I would like to know the plant and build date of your car, and the GM part no. on your stick.