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Open Roads Forum  >  Towing

 > Correcting for rear end sag

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navycranes

Maryland

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Posted: 07/25/08 09:47am Link  |  Quote  |  Print  |  Notify Moderator

I am pulling an Outback that has a max weight of 7,000lbs. At 12% that is about 840lbs of tongue weight.

My 2006 Dodge 1500 tends to sag a little in the rear end even with my 800lb Eaz-Lift bars at their max. I can get the weight distributed evenly to both axles (at least the scale is saying that I have) but I can not get the sag out of the rear end.

I am considering adding either helper springs or air bags to my rear end to prevent the sag.

What is the better system to go with? Helper springs or air bags?? And which brand is the best one to go with?


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1jeep

acushnet ma.

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Posted: 07/25/08 10:22am Link  |  Quote  |  Print  |  Notify Moderator

you might want to try bigger bars first to even the weight out, most likely when your camper is full that tongue weight is more than you think. Is both front and rear of the truck going down the same amount when you put on your bars?


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colochoclab

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Posted: 07/25/08 10:26am Link  |  Quote  |  Print  |  Notify Moderator

Do they make 10000# spring bars for your type of hitch? I have the 10K bars on my Equalizer hitch and I kinda wish I went with the 12K bars sometimes!

-Lab


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gouldc

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Posted: 07/25/08 11:00am Link  |  Quote  |  Print  |  Notify Moderator

Larger bars might be the quickest answer. After trying that avenue, and you still have an issue, I can't say enough good things about airbags. The quality of the ride will increase dramatically as well, even when unloaded and the air pressure knocked down.

Let me know if you want more info on them.


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Big Shoe

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Posted: 07/25/08 12:29pm Link  |  Quote  |  Print  |  Notify Moderator

I installed the air bags inside my rear springs. They help, however I have had problems.One of the air lines got a little close to a hot manifold and that was that. Another time the air bag actually popped.
The company stood behind the product and sent me a new air bag but they never reimbursed me for the new pair of undies; when that thing popped I thought someone had shot at me!


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BarneyS

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Posted: 07/25/08 01:16pm Link  |  Quote  |  Print  |  Notify Moderator

If you have not weighed your tongue, I will bet that your tongue weight is closer to 1000lbs than 800! If I were you, I would put 1000lb bars on your hitch and then re-set it up using this thread as a guide and then visit the scales to see exactly what you did and make any corrections. There is no reason why you should need air bags or helper springs with that truck and the proper WD bars and setup.
Barney


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Ductape

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Posted: 07/25/08 03:07pm Link  |  Quote  |  Print  |  Notify Moderator

You guys are not reading the OP. "I can get the weight distributed evenly to both axles (at least the scale is saying that I have"

If the above is true, heavier bars are not the answer. Moving all the weight to the front axle is not a safe solution.

IMO I would start from scratch with weighing and measuring just the TV and then the combo. And especially the TW.

Somewhere in the setup there is an incorrect assumption. Rear sag and evenly distributed weight don't go together.


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johnthecamper

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Posted: 07/25/08 04:58pm Link  |  Quote  |  Print  |  Notify Moderator

First your true tongue weight is probably much more than you think. My Jayco specs say it has 875# tongue but loaded for travel it is more like 1250#. I have the Eaz-Lift hitch also and changed from the 1000# bars to the 1400# bars. The bars can be found online fairly reasonably priced.

Al B

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Posted: 07/25/08 05:48pm Link  |  Quote  |  Print  |  Notify Moderator

In my experience, if you cannot return the truck/trailer to level with the bars, then the truck should be changed, maybe with a 3/4ton?? What is the payload on the Ram 1500 in your configuration? With a 3/4 ton, a noticeable payload increase will surely help your situation. JMO tho.

gouldc

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Posted: 07/25/08 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

Not always. I'm within my specs but have about 2" of sag without the bags. Again, not only does it keep the truck level it improves the ride quality loaded or dry.

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