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Old 12-08-2014, 04:58 PM   #1
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Dodge Ram axle ratio

I tow a 27 ft Flagstaff with a Dodge Ram V6 that has a 3.55 rear axle option, or so I thought. It turns out that even though I paid for a 3.55, I got a 3.21. Has anyone had this happen? I am waiting for the deale and Dodge to act after my complaint.
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Old 12-08-2014, 05:41 PM   #2
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Assuming the V6 is a gas engine, with 3.21 gears, it seems to me that you better not tow that much trailer in any mountains. The level of torque you have with the V6 coupled with the 3.21 rear tells me that you are rather limited in what you tow!
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Old 12-08-2014, 09:01 PM   #3
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#.21 with V6

The 3.6 with 3.55 has a max tow over 7000. The 3.21 has a max of 4200. Dodge will eat this truck or replace it with 3.55 gears.
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Old 12-08-2014, 09:45 PM   #4
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2013?

http://www.ramforumz.com/showthread....ong+axle+ratio

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Old 12-08-2014, 10:34 PM   #5
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2014 differential ratio

2014 Big Horn with the 3.55 as an option, but not installed. I have been all over the Dodge Ram forums and see most are talking 2013. I have yet to find anyone with a 2014 having the same issue.
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Old 12-09-2014, 02:57 PM   #6
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Dodge used to post a small sticker under the hood with options, like rear ratio and engine size for that particular vehicle.
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Old 12-09-2014, 03:09 PM   #7
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3.21 vs 3.55

I have had the truck to the dealer and am waiting for a response from Dodge. The Option list shows 3.55, but the actual tag on the differentials (4X4) show 3.21. It is not a standard equipment issue, but an option not installed. I haven't found anyone who has gone completely through the process yet.
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Old 12-09-2014, 03:10 PM   #8
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I have a 2014 2500 cummins with a 3.42rear axle ratio hope its ok for 34 foot big horn to pull.
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Old 12-09-2014, 09:40 PM   #9
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Quote:
Originally Posted by roadking5002 View Post
I have a 2014 2500 cummins with a 3.42rear axle ratio hope its ok for 34 foot big horn to pull.
Cummins. You are fine.
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Old 12-10-2014, 04:26 AM   #10
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My build sheet sez 3.55 on my 13 Ram Laramie 5.7 and now I am wondering because I read more and more about this.Guess I will have to climb under the truck today and have a good look at the axle tag.
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