1967 A-body Big Block 383 4bbl 727 Automatic Transmission

Did mother mopar make mistakes,YES,am i suggesting you did some thing wrong,NO.I am asking questions and looking in galens books for answers,and in carl H monroe,s torqueflight A-727 handbook for the right answer,weather its a good or a bad one.When I see some thing that I think might be good or bad,I research it and make phone calls to some of the mopar gods I know,and I will.I will find out about the J&F codes found on some trannys,and other numbers to look for.What are the box codes on the case and the 2 digit number above it.Do you know if the tranny has been opened up to know the parts in it?If you can inforum every one what the last 7 digits stand for,please state there meaning,as of this piont,a internal mopar code,makes me ask more questions.And a answer can lead to more questions.Mrmopartech