So after all the hours I spent Guess it was worth it . You'll notice its not completely finished yet , still waiting on speedo drive gear so i can put the tail shaft housing on it . I'm working on the back-up light switch assembly and the metal tag riveted to the side of the case was VERY badly rusted so in the process of reproducing another one .
So this is what I've learned from everything I could scrounge up . if I'm wrong or someone has something to add please feel free .
The KF on the right side of case was sprayed on using a stencil and should be on all Buick dearborn transmissions for 1965
The 16 not sure 100% but was a rubber stamp as the paint was really thick in spots and probably from the person who assembled it .
All dearborn ( top loaders ) had a metal tag riveted to the right side , the top row will read ( HEG AD ) second row of numbers was merely a serial number that ford attached to there cases . Which leads to the very uncommon ( GAD ) on the left side of the case , this was also a rubber stamp . The G was the last letter of the HEG stamp on the tag and the AD at the end . The stamping on the tags sometimes was very faint so I,m guessing the GAD in yellow was for a quick and easy way for the assembler to know which trans was suppose to go in that particular car .
The yellow 4 in yellow brush mark was probably for 4th shift . ( ? )
The blue daub on the bottom , your guess is as good as mine . possible that it was filled with fluid .
The last two are the orange grease pen marks . I have No clue as to what those represent .