I have a 05 Quad cab 5.7 Hemi and I noticed underneath the hood there was a sticker placed on the bar the hood latches to. It says Authorized Modification. It has this code written on it: PGM# 56028958AH it also has a Change Authorization# 1801305. Does anyone know what these codes mean?[sm=proof.gif]

 

not positive but usually they put stickers like that on when they run an update or re-program the pcm...

 

hanson is right...when they do a reprogram (flash) they have to put a sticker on the truck with the new part number, auth. code and all that and also the date of when it was done