[Billett]

Unfortunately the VIN doesn't tell you much about these trucks. The real indicator of what came on it from the factory is the SPID (Service Parts Identification) sticker that is in the glove box. I personally couldn't tell you about what kind of hump it is, but this forum is filled with many knowledgeable guys so I'm sure one will help you out soon enough. As a side note, it looks like it is in very nice condition from the picture you posted. Good luck with it!