My truck is a Laramie SLT, I have seen others that were SLT's and SLT plus. When I look at the window sticker of a new truck it does not show any package designation for what each of these come with? Is ST the bottom trim level, then SLT, then Laramie SLT, then SLT Plus? Or does it change based on the year of your truck? When did they start with the plus? Sorry for all of the questions. Thought one of you would know this 
Thanks
Denny

Thanks
Denny