thanks for the help finding the right place to look. here is the #

KF 06093

thanks kentf9

KF - for 1969 this code relates to 3.55 Posi.
0609 - Assembly date of June 9
3 - If my memory serves me right this refers to third shift of the day.

Hope this helps.

The 3 might really be a B for the Buffalo Axle plant.