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  #1  
Old 12-08-2011, 01:42 PM
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Tow 06 F150

Hey guys,
I tow with my 2006 SC F150 4x4 that has 5.4L, Auto Trans, 3.55 gear ratio, a 6" lift, 17" wheel with 35x12.5x17 m/t's. Mods I have done include a Pro comp tuner, " cat back and a AFE intake.

Looking for some more towing power without re gearing. How much more power should I expect going down to 33x12.5x17 tires?

Thank you for helping out :-)
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  #2  
Old 12-08-2011, 03:11 PM
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I would say stepping down to a 33 is your best option for more power. Other than that man, would be a supercharger. You can pretty much count on your tranny blowing out though. You could try a tuner with custom tunes but I think your best option is stepping down to 33's.
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  #3  
Old 12-08-2011, 03:45 PM
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grimace1100 grimace1100
33's and a custom tow tune, if your dead set against regearing. What are you towing?
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  #4  
Old 12-08-2011, 08:05 PM
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Do gears and be done with it. Tire size will help out some, but you can keep the look and gain the power back with gears.
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  #5  
Old 12-08-2011, 09:24 PM
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6" lift and 33's is going to look terrible.

Re-gearing is your best option even though you don't want to.
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  #6  
Old 12-10-2011, 01:43 PM
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Send a message via Yahoo to tarajerame
why lift the truck and install big tires if you can't afford the re-gear??
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  #7  
Old 12-12-2011, 01:39 PM
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Thank you all who helped! As for tarajerame, truck runs perfect when not towing. Who said anything about not being able to afford re-gearing?
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  #8  
Old 12-13-2011, 09:06 PM
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People just assumed that since you were set against it. Bottom line is putting on a set of Yukon 4.30 gears to turn those heavy 35s would be by and far the best option. People think steeper gears will hurt mpg, but in cases like yours it actually improves fuel economy since the engine doesn't have to work nearly as hard - even when unloaded. Also it would get your speedometer back closer to correct.
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  #9  
Old 12-13-2011, 09:47 PM
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No 4.30 for the front diff.

if you are towing, you want 4.56 with 35's.
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  #10  
Old 12-14-2011, 09:45 AM
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Re-gear the truck, it's going to cost you just as much to buy new tires as it will to re-gear the truck plus you get to keep the look that you worked hard to achieve in the first place.
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  #11  
Old 12-14-2011, 11:36 AM
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Originally Posted by dsq3973 View Post
Re-gear the truck, it's going to cost you just as much to buy new tires as it will to re-gear the truck plus you get to keep the look that you worked hard to achieve in the first place.
+1
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  #12  
Old 01-11-2012, 09:51 PM
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Quote:
Originally Posted by nathan3306 View Post
I would say stepping down to a 33 is your best option for more power. Other than that man, would be a supercharger. You can pretty much count on your tranny blowing out though. You could try a tuner with custom tunes but I think your best option is stepping down to 33's.
Supercharging done correctly will not blow the transmission. The are plenty of threads on this site that actually discuss how robust our transmissions are. The weak point is actually the engine internals, which fail under intense boost pressures. I too am in search of more towing power and plan on installing a Whipple and running it at the default of 8psi with a professional/reputable tune. If installed and operated properly there should be minimal degradation to engine/drivetrain life.
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Old 01-11-2012, 09:51 PM


 
 
 
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