I'm still fairly new to the forums and truck talk in general so I have a quick question: what to all these initials and acronyms mean? I figured out a few like, like CCSB (crew cab, short box) or ECSB (extended cab, short box), etc. But, in particular, what does NNBS, OBA and OBS mean? :neutral: Any other common ones that would be helpful to know? Thanks!