good luck, I'd love to know too. Pull-a-part doesn't have much in the way of GM trucks. Meridian might have a few though. Saw a 2009 Dodge there a few weeks ago. poor chap.
i work at gundies in Bellingham, and to be honest... we dont keep anything older than 2000'ish. here and there we will have older stuff, but its getting hard to find parts for those rigs.