OK, Bought a 07 with a couple problems today.

[SpareParts]

No. The Avalanche does not have a dash mat.
My Yukon has been the same sence I got it before I added a dash mat.

 

[SpareParts]

The new front NOS Struts i ordered off EBay arrived today. 1 in a sealed GM box the other open box. I'm pretty happy with the $120 they cost for the pair

 

[tooleyondeck]

I don't own a GMT900 but I still found myself reading through this entire thread this morning, great info and lessons learned here!