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    Gear Change Req'd for 33's?

    Good to know. Thanks everyone. Not sure which gear setup I have on the truck exactly, and currently deployed so I cant check it for a few months yet. I believe it's the 3.21 which would explain a lot. I've had the truck briefly over a hundred, and it can definitely pull itself up any hill no...
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    Gear Change Req'd for 33's?

    I can attest to the increased weight lol. Im also only getting about 13-14 combined mpg. Again, mostly city driving but even on the highway I'm averaging like 15, going around 75mph. What was involved in the trans tune? May consider going that route. Thanks again for the help.
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    Gear Change Req'd for 33's?

    I was thinking 33's were just a tad larger in diameter than the stock. If that's stock then I guess I'm good. No, theres no weird smells of any kind. The tires on there are Nitto MT's, that could also be a factor I guess. You have no issues cruising at hwy speeds without the overdrive kicking...
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    Gear Change Req'd for 33's?

    Bought the truck used with 33x12.5x20's on it. I noticed it has trouble staying above 70 on the hwy without downshifting (5.7L, 8-spd tranny). Other than that, it runs and shifts just fine. Roughly 75K miles on it now. I do mostly city driving with the occasional few-hour hwy trip, and Its never...

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