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Old 12-31-2021, 06:28 PM   #12
mongocanfly
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Join Date: May 2015
Location: Alabama
Posts: 14,595
Re: 454 Dually with 4.56 rear diff, what auto trans to use

My 81 C30 has 4.10s and a nv4500 and 31in tire..I just pulled a travelall on a 16ft trailer from Colorado to Alabama..most of the time I had to look in the mirror to even know it was still behind me..except in the high pass elevation..it was a dog ...35-40mph was all I could do..other than that ,I could run 75-85mph with no issue..my LQ9 averaged right at 13mpgs..
In Alabama I regularly pull around 9500lb gross loaded on trailer..very seldom even feel it..
I think youd be fine with a od trans
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Mongo...aka Greg

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1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2023 Chevy Z71..daily driver
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