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Towing 4th Gen Dodge Ram Towing Questions


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  #1  
Old 03-28-2013, 12:58 PM
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Default R/T Towing Capacity..

Does anyone have the information from "RAM" for the lower towing capacity on the R/T?

Our trailer weight is ~ 5000lbs, where as the same truck, (Express), with 3.92 gears is over 9000lbs.

Just curious.

Rear Springs?
Torque Converter?
22" Wheels / Tires?

David
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  #2  
Old 03-28-2013, 01:12 PM
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Can't say why you are limited to 5050lbs max tow, but by the looks of the specs on rambodybuilder a portion of the reduction is likely due to stance of the truck and the axle weight distribution where you are closer to 50/50 than the same express which has more rake in the stance therefore transferring slightly more weight to the front axle.

Spring rate is likely a factor as well.

Hope somebody chimes in and has a better answer, interested to know as well.
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Old 03-28-2013, 04:12 PM
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Typically, a performance truck (or car for that matter) from the factory with a lower then standard suspension will have a lower towing capacity due to the reduced suspension travel.
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Old 04-01-2013, 10:07 PM
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Check here: http://www.ramtrucks.com/en/towing_guide/

I assume yours would fall under the Sport with the 4.10 gears. 5,050lbs.
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Old 04-02-2013, 04:19 PM
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I know what the limits are. I want to know why is the Sport / RT is lower than the regular Express at 9000 lbs.

David

Quote:
Originally Posted by ONOutdoorsman View Post
Check here: http://www.ramtrucks.com/en/towing_guide/

I assume yours would fall under the Sport with the 4.10 gears. 5,050lbs.
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Old 04-02-2013, 08:01 PM
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Sorry. Like the others said I would say springs and tires would have a lot to do with it.
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Old 04-03-2013, 01:35 AM
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OK, doing some research and it is not the tires. Most of the stock 20" size tires are rated at 2601 max psi, (some are more), and the stock 22" tires are 2601 max psi, (some are less), but for the most part they are rated the same.

Payload is almost the same also, Express with 3.92's is 1493 lbs and the R/T is 1412 lbs. So, this would be the difference of the rear springs because this takes into account any tongue weight.

Obviously it's not the gears because the R/T would be rated higher with 4.10's than the 3.92's.

So what's left, transmission and torque converter. ??????

More interesting info:

Transmission 1500 Ram w/ 4.10 gears. Part # RL087046AB
$3333.33

Transmission 1500 Ram w/o 4.10 gears. Part # RL051225AD
$4270.00

Hmmm.....
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Last edited by TriSum; 04-03-2013 at 02:01 AM. Reason: Add info..
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Old 04-03-2013, 01:53 AM
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it all has to do with Curb Weight, empty vehicle
Wheel & tire weight
Bumper weight
radio weight
seat weight

The more the weight of an empty vehicle, the less it can tow or haul
17 inch tires are lighter then 20"
aluminum is lighter then steel
etc.
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Old 04-03-2013, 10:49 AM
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Does the R/T have the heavy duty oil and tranny cooler?
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Old 04-03-2013, 12:55 PM
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It's the higher stall rpm on the torque converter. Higher stall rpm causes more heat build up, especially when under load.

If you buy an aftermarket high stall TC the manufacturer will advise you not to tow.
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