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4:10 gear ratio

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Old Jun 25, 2009 | 12:26 PM
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Default 4:10 gear ratio

I'm trying to find different ways to increase the "get up and go" in my truck! I've started with the XDI True Flow Instake, have the mufflex dod14m on order, and now i'm looking into this gear ratio deal. What benefits come with changing to the 4:10 front and rear? Should I even bother changing if I don't plan on lifting? If changing to the 4:10 is a good deal, should I do both front and rear?

HELP please!
 
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Old Jun 25, 2009 | 12:33 PM
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Originally Posted by BigRaq
should I do both front and rear?

HELP please!
That would be a good idea. If you don't then things tend to explode when you put it in 4wd


4.10 gears will let you tow more and give you worse milage.
 
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Old Jun 25, 2009 | 12:47 PM
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The higher the gear ratio, the higher the RPMs to reach the same speed and the lower the MPGs. You'd feel that you have more power when you hit the gas, but you'd run slower at the top-end.
 
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Old Jun 25, 2009 | 12:55 PM
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If you have 3.55s, it would be a good change. If you have 3.92s now, then it is not worth it, it is not a large enough change. Figure on about $1000+ per axle for the swap.

Going from 3.92s to 4.56s, I lost about 8-10% fuel mileage, but the driveablility while towing is well worth it.
 
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Old Jun 25, 2009 | 01:45 PM
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Originally Posted by Mopar21277
If you have 3.55s, it would be a good change. If you have 3.92s now, then it is not worth it, it is not a large enough change. Figure on about $1000+ per axle for the swap.

Going from 3.92s to 4.56s, I lost about 8-10% fuel mileage, but the driveablility while towing is well worth it.
1000$ per axle with or without a new locker/limited slip?
 
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Old Jun 26, 2009 | 02:43 PM
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Approximately $1000 per axle for ring & pinion, installation kit (seals, bearings, hardware) and labor. New pinion and carrier bearings are necessary, as they don't like to be pressed off and reused (been there, tried that, bad thing).
 
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Old Jun 26, 2009 | 07:54 PM
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Since you have a CC 4x4 and spending some good money for the change I think 4.56 gears would be the way to go IMO.
 
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Old Jun 26, 2009 | 08:12 PM
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Originally Posted by M15
Since you have a CC 4x4 and spending some good money for the change I think 4.56 gears would be the way to go IMO.
thats what i did and dont regret any of it
 
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Old Jun 27, 2009 | 12:24 AM
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My 355's are dogs from the start but after you get moving then it no longer matters, it sits you back and well still sucks gas. LOL
 
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Old Jun 27, 2009 | 01:22 AM
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Originally Posted by switchblade906
thats what i did and dont regret any of it
where did you get your 4.56s from and how much were they ive def been debating this also did u get lockers, tru trac or what?
 
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