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Gearing for tall tires Gearing for tall tires
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  #1  
Old 06-05-2007, 07:10 PM
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Unhappy Gearing for tall tires
I have and 03 5.4 with 35 inch procomps. I just recently bought it and noticed it likes to jump up and down between gears on the freeway. what would be the best solution ie. re-gearing but not too drastically low to consume some of my horrible gas mileage. any comments please

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  #2  
Old 06-05-2007, 07:34 PM
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I cant find the post now but I have read from a couple of people that they know someone or have themselves re-geared these trucks to 4.10's with minimal affect on MPG's. I will keep looking and post up a link if I find it.
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  #3  
Old 06-06-2007, 08:21 PM
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Quote:
Originally Posted by edwardsjr1
I have and 03 5.4 with 35 inch procomps. I just recently bought it and noticed it likes to jump up and down between gears on the freeway. what would be the best solution ie. re-gearing but not too drastically low to consume some of my horrible gas mileage. any comments please
Remember that your gas mileage isn't as bad as it appears to be if you haven't corrected your speedometer and odometer after switching to the larger tires.
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  #4  
Old 06-07-2007, 04:09 AM
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4.10's!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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  #5  
Old 06-07-2007, 10:40 AM
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i would have to say 4.56 IMO
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  #6  
Old 06-07-2007, 03:02 PM
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4.56 more power. what gears do u have now.
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  #7  
Old 06-07-2007, 03:16 PM
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I have 3.55's with my stock tires and when I step up to 35's I plan on regearing to 4.56 --- It'll put me somewhere around 3.9X's...
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  #8  
Old 06-09-2007, 10:32 AM
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I have 35" Mud Terrains and 4:56's and all I do is kick myself for not doing this sooner. I actually get better gas mileage and have more seat of the pants power, since my engine actually runs in the power band now. I don't have a highway commute however. I corrected my speedo also.
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