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Old 05-08-2011, 04:35 PM
2011RamCC 2011RamCC is offline
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Question Limited slip diff's

Can anobody here advise why Dodge, in their infinite wisdom, decided to only offer the LSD in the 3.92 gear option? I know that the traction control is the current technology, but I prefer to have the old school mechanical locking diff. My 2011 has the 3.55's, so obviously I didn't get the LSD. From what I can see, it was only offered as standard equipment in the Outdoorsman package, and maybe in the Sport package.
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Old 05-08-2011, 04:41 PM
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Yeah...I hear ya. Seems weird, don't it? I have no idea why they would do that.
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Old 05-08-2011, 04:43 PM
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and that would be why most of us are fixing their "issue" out of our own pocket
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Old 05-08-2011, 04:44 PM
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Just a thought.....for fuel mileage? Every little bit helps mfgrs meet or exceed the CAFE requirements.
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Old 05-08-2011, 05:03 PM
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I guess what's the most confusing to me is, won't the same carrier that works for the 3.92's work for the 3.55's? And, how does an LSD diff effect mpg's?
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Old 05-08-2011, 05:31 PM
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My truck spins both tires on pavement with 3.55 gears.
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Old 05-08-2011, 05:47 PM
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just a guess but maybe they buy all the carriers prebuilt and to save money they only ordered them in one ratio...
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Old 05-08-2011, 06:01 PM
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LSD is optional for the 3.55 ratio from the factory i believe
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Old 05-08-2011, 07:02 PM
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Quote:
Originally Posted by gjayf77 View Post
LSD is optional for the 3.55 ratio from the factory i believe
you're right. that's new. the Ram site lets you select anti-spin differential with the 3.55s or 3.92s but it is removed if you select the 3.21s.
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Old 05-08-2011, 08:07 PM
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Quote:
Originally Posted by gjayf77 View Post
LSD is optional for the 3.55 ratio from the factory i believe
Yup. Our truck has the 3.55s and LSD.
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