We just recently added a 2003 Chevy Tahoe with a 5.3L V8 and the factory towing package, 3.73:1 diff. and all the other expected things to our "motor pool". I will add only a Bugflector II, and my prodigy brake controller and I'm ready to go.
I will also consider McKesh mirrors, as they seem to be the best ones going to date.
I still have the Blazer so I can use either vehicle to bring the TM whever I go.
8)
Larry