Have you already found some of the info about GB here? There's been a few that have done it, and posted detailed pics etc. There's also a bunch of info I researched and posted that I found on the Avalanche forum about GB and their experience. It makes a really nice uniform smooth surface, but is likely to chip off if abraded (like from offroad brush, etc...)
I know Mike Nomy bought 8 cans, but only needed 4 cans.....8 is for the Avalanche, which does have a butt load of plastic like Sam said!
Also, GB comes in 3 (or 4?) colors, that may be why they're asking for which GM vehicle.
mike nomy and PittVXr both did theirs fairly recently.
Here's Mike nomy's thread:
http://www.vehicross.info/forums/sho...639#post234639
and PittVXr's thread:
http://www.vehicross.info/forums/sho...278#post238278
There's some input and comments about GB in some posts in this thread:
http://www.vehicross.info/forums/sho...024#post245024
HERE'S SOME THREADS/POSTS ABOUT IT IN THE AVALANCHE FORUM:
http://www.chevyavalanchefanclub.com...hp?board=113.0
http://www.chevyavalanchefanclub.com...,119244.0.html
http://www.chevyavalanchefanclub.com...,117336.0.html
http://www.chevyavalanchefanclub.com...,117082.0.html