Low milage First off you don't buy this type of truck and expect to get good mpg. I pull a 38ft. fifth wheel that weighs about 19,000 lbs.and...
I work for Allison Trans. they have tested the Allison trans in subs with both gas and Duramax power the R&D people I have talked to will not say...
If I were you I would not think to hard about the transmission. I think you have an Allison Transmission. These tranneys are the best towing...
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