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Old 08-04-2014, 12:32 PM   #1
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Best for Towing

I have narrowed my search down to two Ram 2500's. One has the 5.7 hemi with the 4.10 rear end. The other is the 6.4 hemi with the 3.73 rear end. Any thoughts/comparisons between the two for general driving and towing a 7,000 pound travel trailer would be greatly appreciated.


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Old 08-04-2014, 12:46 PM   #2
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I would get the 6.4 for payload alone. it should have 10000 lb gvwr compared to 9000 lb for the 5.7l. will give you almost 1000 lb more payload. I dont have driving experience with the 6.4l but from reading reviews and specs on it it has a better torque curve then the 5.7l.
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Old 08-04-2014, 12:51 PM   #3
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If money is not the object, why would you settle for the 5.7? Because of the difference in gear ratios the mpg is probably going to be about the same, and you can always appreciate having more power and torque with the 6.4. Having said that, the 5.7 is a very strong motor.
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Old 08-04-2014, 12:56 PM   #4
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Good advice given above. Here's a link to the comparisons between the 2 engines!


2014 Ram 2500 - Capability & Performance
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Old 08-04-2014, 01:12 PM   #5
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I would go the 6.4 and put 4:10 gears in it . guesing about $ 500.00 up grade.
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Old 08-04-2014, 02:04 PM   #6
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Thanks for all your replies. Ideally I'd like the 6.4 with the 4.10 rear end ratio. I haven't been able to locate one with the options/color I'm looking for. I could order a 2015, but would probably miss out on all of the rebates that are being offered now. As far as the suggestion of buying the 6.4 and upgrading the rear end to the 4.10, would that invalidate the drivetrain warranty?


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Old 08-04-2014, 03:04 PM   #7
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I wouldn't worry about upgrading the diff gears to 4.10 for a 7000 lb trailer. 3.73's will work fine.
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Old 08-04-2014, 03:14 PM   #8
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Originally Posted by jgroff View Post
I wouldn't worry about upgrading the diff gears to 4.10 for a 7000 lb trailer. 3.73's will work fine.
I totally agree. Buy it as is and drive it. You'll find it quite acceptable and if not, you can always update to the 4:11's in the future. My guess is that will never get "updated" as you'll find the truck as you buy it is all the tow vehicle you need!
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Old 08-04-2014, 09:59 PM   #9
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Just curious why you are not considering the 6.7 cummins?
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Old 08-04-2014, 10:11 PM   #10
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I've always heard and read that a diesel needs to be driven. I only put about 6,000 miles a year on my truck and sometimes it sits in the driveway for days at a time. Most of my trips around town are 5 miles or less. The only reason I'm looking to upgrade is for the additional cargo capacity. I'm bumping up against it now with my Ram 1500.


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