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  #1  
Old 06-20-2011, 07:47 PM
Weavs Ram Weavs Ram is offline
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Default 2011 Ram 1500 rear-end 3:55 or 3:92

Can anyone tell me the better rear-end to go with on my new Ram 1500 I am special ordering. I don't fully understand the benefits of one over the other.

I am picking up a Ram 1500 Laramie 4X4, the 3:55 is standard.
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Old 06-20-2011, 07:49 PM
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The 3.92 will most likely be a posi-trac style differential, which is better for towing and traction in snow or ice. The trade off is what I'd consider a miniscule reduction in MPG.

Good luck with your choices and welcome to the forum!
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Old 06-20-2011, 07:51 PM
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Welcome to the forum!
3:55 will give you better top end with a little better gas millage. 3:92 will give you better pulling power. I have never had 3:55, but seems like the ones that do have it wishes they had 3:92.

Edit: plus what MADDOG said
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Old 06-20-2011, 08:02 PM
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I believe with the 2011 models, if you are getting the 3.55, there is a LSD option
some people that bought their Ram with a 3.92, said that they did NOT get the LSD & they were led to believe that they were standard with the LSD

you can't go wrong with the 3.92 with LSD

from what i read, the 2012 model will have the 3.99 ratio as an option, no more 3.92s.
2012 will have a different transmission, a 6 speed will replace the 5 speed

I may be incorrect on this, but i believe the Ram factory is now closed for the 2012 retooling, due to reopen about July 4th
,

The changes affect a pickup truck plant in Warren, Mich., near Detroit; the Toledo, Ohio, North assembly plant, which will be idled the weeks of June 20 and 27. Both plants had been scheduled to close the weeks of July 11 and 18. The Toledo Supplier Park parts and assembly operation will close the week of June 20 instead of July 11.
http://www.mlive.com/auto/index.ssf/...mer_shutd.html
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Old 06-20-2011, 09:14 PM
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Hello and welcome!

Good to have you with us, I hope you enjoy the board!
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Old 06-20-2011, 10:21 PM
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Welcome to the forum,
This forum is full of great looking trucks; packed with great mod ideas and there are loads of knowledgeable and experienced people here.

AND - We all like pix! Looking forward to seeing yours.
Enjoy the Z!
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Old 06-20-2011, 10:29 PM
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Welcome to Forum Z
Great to have you with us!!!
Dont forget to post pics of your ride.
3:92 posi with out a doubt!!!
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Old 06-20-2011, 10:54 PM
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Either will be fine for every day, the LSD is more important than the gear ratio, but I would get the 3.92. Mine has the 3.21 gears and it is a tad bit slower than my buddy's 3.92 truck....noticeably slower
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Old 06-20-2011, 11:12 PM
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Hello and welcome to the forum great to have you here. Congrats on your soon to be new truck,
When you get it and have a chance why don't you post a few pictures of your truck.
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Old 06-21-2011, 12:17 AM
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Hi and a warm Carolina welcome to the best RAM ForumZ on the web. How about posting a few photos of your truck? I'd like to have a LSD with the 3.55 so a mod is in my future. If I could do it again I'd have the 3.92's.
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