I traded a 2003 Z71 for a 2008 Z71. Many improvements, all for the better. This is a very dependable vehicle but components do go bad. There are so, so many that make it perform like it does I can't say enough good things about the 2008 Avalanche Z71. It is a go- getter. Although a little pricey the astute buyer can do his homework and negotiate smartly and save some money.
Subtle changes-exterior, chrome door handles, mid point chrome below grille, moving the Z71 to the pillar.
I miss the vinyl cladding. It really protects against stone chips, etc. With a little Vinyl cleaner/dressing the cladding looks brand new in a matter of minutes