Forum Discussion
KD4UPL
Jun 13, 2015Explorer
I've owned an '01 8.1L with the 5 speed Allison, an '07 Duramax with the 6 speed Allison, and currently drive an '05 with the 5 speed Allsion.
I prefer the 5 speed. The manual shift is completely unnecessary because the Allsion knows what gear to be in empty or overloaded.
If you're cruising along in 6th gear and step on it to pass someone the 6 speed has to downshift twice.
OP,
My '05 Duramax that I bought new has 198,000 miles on it. Most of them towing, hauling, or both. It has been extremely reliable and low maintenance and it does not overheat.
I prefer the 5 speed. The manual shift is completely unnecessary because the Allsion knows what gear to be in empty or overloaded.
If you're cruising along in 6th gear and step on it to pass someone the 6 speed has to downshift twice.
OP,
My '05 Duramax that I bought new has 198,000 miles on it. Most of them towing, hauling, or both. It has been extremely reliable and low maintenance and it does not overheat.
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