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Old 10-09-2018, 02:45 PM   #6
Tom
driving is in my blood
 
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Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,690
Re: 700r4 or TH400 with gear splitter?

lol. Yes lowering your cruise rpm will gain mileage. If it didn't the oem's wouldn't have done it seeing as no truck accelerates with a load in overdrive meaning they added no usable gears with overdrive except at cruise.
700R4 with a 454 is a joke. Not an option IMO.
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-02 Suburban 4x4: leveled front
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