Duramax with Hydra-Matic a good combo?
i am used to the duramax and Allison combo in my 2005 Silverado and love it. I need more passenger room. I'm looking at a 2008 express with the duramax hydramatic combo. I know it's not as good as ...
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I wonder how the new 8L90E 8-speed will compare? I've got one in my 2015 Yukon XL, and the extra ratios drive really nicely, with and without the trailer.
But it's too soon to tell how it's going to hold up.
But it's too soon to tell how it's going to hold up.
