still waiting for offroad97x.com to surface... talk about a minority!
Also to ErikSS, I'd be hard pressed to believe that EVERY Envoy Denali has both an 8.6 and V8.
Edit: Just read that all Envoy's have the V8... not sure how to find out about the rear axle, but I would HOPE GM was wise enough to match a V8 with the stronger axle.