Look what i found !

The Chrysler part number for that trans is 3410608 and the CDE number is 602. That code is correct for a 1969 A-Body with a 383 4-speed and was also used with other engines in a 69 A-Body. That code is also on your broadcast sheet for the trans and would be on a Lynch Road Plant Fender tag if that car was produced there. Good chance it could be your original trans and your pad should show your vin sequence if it is. I have had a lot of 4-speeds through the years with these type of 3 digit codes on and every one i checked matched what was in the book for CDE with what car/engine combo it came from, all the way from a Hemi Cuda to other 6-pak cars including AAR & T/A which have their own numbers. Like i said very important documentation especially if the trans is vin matching to your car