The stampings were done to make "sense" for whatever plant or employees needed to understand the rear end breakdown. I am not sure what all of the variations and colors of markings meant. Having the original samples certainly makes it easier to eliminate the guess work when trying to replace them.
I can have stamps made up at anytime. I do not have a set program or pricing as of yet. We just finished the different fonts, so this project is still in the beginning stages.