numbers in glovebox

[crows feet]

Hi guys seem you guys know alot .what are all the numbers on the inside of my stock glove box,is that the pick ticket???if so where can i find out what they mean?

 

[Bad bow tie]

They are called RPO codes. They tell you all the options that came with your truck from the factory...like gear ratio, engine type, everything. They are listed here

http://www.rpocodes.com/