Dieselnerd said:My wife has a Chevy Trailblazer 4x4. There is a Trailblazer Forum that I read from time to time but most of the people that post there seem to know nothing and repeat things they "heard" which are pretty funny sometimes. Recently someone was going on about how wonderful the "Allison" transmission shifted in his Trailblazer. He went on and on about the strength and durability. Now that was news to me. My wife's 4x4 does shift nice but if it's an Allison they sure shrunk it down to fit. :-laf