Thanks!! I'm prob just going to order the new dash then. This
ebay seller has a used one out of an 07-8 Avalanche for $475 (flat rate shipping included) but GMPARTSDIRECT wants $248 shipping so I'm looking at $650 for a brand new dash.
VERY glad to hear they updated the design. I remember when I looked at this years ago (before my dash was in such bad shape - back then it just had a couple of sizeable cracks - should have capped it then) I got a lot of feedback from other owners not to bother because the new dash would just crack again eventually. I think one poster said he did install a brand new dash and it cracked again only 3 days later.
Fun facts: JD Powers gave Chevy a Quality Award in 2007 and the Chevy Silverado was Truck of the Year for 2007.