Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
Everything that you need to know about your truck is contained in the RPO codes that are listed on the sticker in your glovebox.
Other folks on this Forum may be able to answer your question directly. I have a master list of RPO codes should be able to provide you with info for every PRO code for your truck listed in the glove box sticker, but the file is too large to upload. Private Message me with your email address, and I will email it to you directly.