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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The Hydramatic behind the diesel and 8.1L in the vans and Suburban/Avalanche is probably a 4L85E, a stronger transmission than a 4L80E.
That is an excellent family of transmission, an evolutionary descendant of the Turbo 400, which is a virtual clone of the Torqueflite 727.
The 727 architecture debuted in 1956, showing that good engineering can last for generations.
That is an excellent family of transmission, an evolutionary descendant of the Turbo 400, which is a virtual clone of the Torqueflite 727.
The 727 architecture debuted in 1956, showing that good engineering can last for generations.
