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Old 04-22-2016, 05:59 AM   #1
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Springs or Bags?

Hey guys & gals,
I want to end my "squating & bottoming out" when I am on rough roads pulling my 5th wheel. I am under on pin weight, but am close to max when loaded. I was wondering if I should do springs or air bags?


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Old 04-22-2016, 06:15 AM   #2
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Air bags are adjustable, but springs are not. You can reduce air pressure in the bags when you're not towing, but once you install heavier springs that's it. Some Helper springs don't come into play until you get to a certain point in the suspension travel, but IMO bags are easier to install.

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Old 04-22-2016, 06:23 AM   #3
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Having done both over the years, I found that air bags worked best for me. When unloaded I could adjust [lower] if needed the height of the truck. Springs will give you a much stiffer ride when empty and are non adjustable, when empty with bags you can lower the air pressure if needed and enjoy a smoother ride, adding air only when needed. There is a minimum pressure that must be maintained in the bags but it was never a problem. Good luck with your choice.
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Old 04-22-2016, 08:13 AM   #4
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You might also look at the Timbren SES product
Timbren SES – Timbren Industries Inc. Suspension Products
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Old 04-22-2016, 05:54 PM   #5
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I use Sumo Springs. Had them on my last truck, too after Timbrens failed twice. The manufacturer describes them as an airless air bag. They are made of a specialize closed cell foam and replace the factory bump stops, so they only engage when you put a load on the truck. Once you put them on, you're done - no leaks and no adjustments. You can check them out here:


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Old 04-23-2016, 06:45 AM   #6
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I went air bags on mine, for the same reasons stated above. When I need them, I put air in them, when I don't, I take air out of them. Truck rides on "normal" suspension when unhitched, and just a couple minutes with an air source (you can also install on board compressors) once hitched, and I'm ready to tow.

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