Turn back the page, we got the answers here. There was only one color for the truck you have and it offsets to a PPG Color 27467 and is called Graphite Brown Metalic. Your PPG dealer can mix it in DBU/DIU or Omni.
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=20;t=000698
Denny Graham
Sandwich, IL