Bumper Codes

[MarcM35A2]

Hi guys!
I´m looking for the original bumper codes for my trucks.
I need the codes for the 77TH MAINTENANCE CO and for the 557TH MAINTENANCE CO
Is there anybody out there who can help me?
Thank you!
Marc

 

[CARNAC]

Suggest doing a google search on those units and see what you come up with. Both units are still active I believe. Email them and let them know what the deal is and see if they can recall what bumper number was on your truck. Worth a shot.