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!

 

[SpareParts]

Forums are nice if people will post understandable information. The biggest help is posting the solution and how the problem was fixed. Some never do.
I will always post about the problem and the solution and generally answer questions if I can.
I also like posting in one thread and keeping all the info in one place so It's easy to find but with multiple sections some people will never see the thread.