You need jr's3800 to define that code for you. He has the master GM RPO code book. I doubt it has anything to do with WHO or WHAT it was ordered for. The BUILD sheet is exactly that. HOW it was built. Not for whom or why.
ponchoGXP... Go to your dealer ask for a print out from the internet of you build sheet. If you want help right now send me your rpo'* under your spare tire cover in trunk I can decode some of them. Just ask the dealer would be glad too. I tried the website you must be a dealer and have a password to get in lol. Sh*t I was hoping I could get in.