I researched the dip stick tube in the 1970 Chrysler Parts books, did a search on the number (don't have it here with me now to publish) and found a well known supplier of 4-speed equipment & supplies in Ohio selling this dip stick tube by part number. My recollection is that he advertised it as being 7.75 inches long which seemed to be the approximate length of the my old dip stick tube when I put the pieces together. Maybe the dip stick I have isn't the original (but I doubt it). I could cut off the tube but that would require "banging" it out of the block without damaging it. It was a pretty tight press fit going in.

I will use ScottSmith_Harms info on measurement and see where mine falls.

Thank you for the information.