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4.10 Gears for Supercharged 5.4?

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Old 06-15-2012, 12:06 AM
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Default 4.10 Gears for Supercharged 5.4?

About a week ago I put a Procharger on my 2010 F150. It has 3.73 stock gears, and I'm thinking about puting 4.10s in it. It still downshifts quite often even with just a little more peddle, pretty annoying. Was wondering if anyone can tell me if the 4.10s will help this out and what it will do to my gas milage?

PS. I'm running 35" tires with a 6" lift
Old 06-15-2012, 07:17 AM
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Originally Posted by Blown150
About a week ago I put a Procharger on my 2010 F150. It has 3.73 stock gears, and I'm thinking about puting 4.10s in it. It still downshifts quite often even with just a little more peddle, pretty annoying. Was wondering if anyone can tell me if the 4.10s will help this out and what it will do to my gas milage?

PS. I'm running 35" tires with a 6" lift
Certainly going with a lower gear will give you back more of your torque; however, you will lose some top end speed/power. Depending on driving style and type, I would either pick a 4:10 or 4:56.
Old 06-15-2012, 09:29 AM
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Originally Posted by MSTR-P
Certainly going with a lower gear will give you back more of your torque; however, you will lose some top end speed/power. Depending on driving style and type, I would either pick a 4:10 or 4:56.
That's where I get confused a little I guess, I just added over a hundred horsepower/torque to the motor, and it still down shifts just as easily as it did before I put the blower on it. I would have figured the extra power would have helped this issue out

And BTW I'm referring to the higher gears like 5th and 6th gear
Old 06-15-2012, 09:47 AM
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Originally Posted by Blown150
That's where I get confused a little I guess, I just added over a hundred horsepower/torque to the motor, and it still down shifts just as easily as it did before I put the blower on it. I would have figured the extra power would have helped this issue out

And BTW I'm referring to the higher gears like 5th and 6th gear
Yep...got it. You need to regear your truck for that to change.



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