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Old 06-19-2018, 08:42 AM   #11
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Originally Posted by Watsons View Post
I might be over thinking this but if tee'd together wouldn't the air just transfer to the bag without the weight when weight is shifted (as when going around a corner) instead of doing its job keeping the truck level?
This is 100% true from an engineering standpoint. As the weight transfers to the side of the vehicle on the outside of the curve, it compresses the airbag on that side, and in turn, pushes air over to the other airbag - which is already being extended due to the weight transfer and wants to receive that air.

So, you can tee them together to make it SUPER easy to apply the same pressure to both sides, but do yourself a favor and install an isolation valve between them so that once aired up, you can close it and they will function as independent systems.
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Old 06-19-2018, 04:30 PM   #12
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Originally Posted by Quantum View Post
You should go over to https://f150forum.com and check out the towing/hauling section. There are many opinions to read about (air bags, sumo springs, timbrens, etc.)
Thanks good to know
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Old 06-19-2018, 10:25 PM   #13
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I had my bags plumbed into a single shrader valve on my F250, and had no issues with sway pulling my trailer.
Installing bags on my new F350 this weekend, and plan on plumbing to a single shrader again.
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Old 06-20-2018, 04:52 AM   #14
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What rating did people get 2000lbs or 5000lbs? Firestone I can get them from Amazon located in Canada rating of 5000lbs. Amazon only has the 2000lbs of airlift. Why would one get a rating of 5000lbs if the payload of an f150 is around 1700-1800, am I missing something?
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Old 06-20-2018, 06:09 AM   #15
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I have Firestone air bags in my 2500 Avalanche. Not because the truck cant handle the weight but because it smooths the ride. It creates less movement on uneven roads. I also have a single tee to adjust pressure for both bags.
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Old 06-22-2018, 05:52 PM   #16
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PLEASE DO NOT use T fittings when you install air bags.. when you go around a corner and the vehicle leans to one side the air in that bag is forced out to the bag on the unloaded side. This is not a good situation. Each bag should have its own inflator.. As for where to get bags I am very happy with the kit I got from Hellwig Spring. Call Nancy at 500-367-5480 for superior service. (no I have nothing to do with the company or get anything for this endorsement)
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Old 06-22-2018, 06:00 PM   #17
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Originally Posted by Seann45 View Post
PLEASE DO NOT use T fittings when you install air bags.. when you go around a corner and the vehicle leans to one side the air in that bag is forced out to the bag on the unloaded side. This is not a good situation. Each bag should have its own inflator.. As for where to get bags I am very happy with the kit I got from Hellwig Spring. Call Nancy at 500-367-5480 for superior service. (no I have nothing to do with the company or get anything for this endorsement)
If you are driving in such a manner that you have to worry about air transfer and becoming unloaded, you shouldn't be hauling enough weight that you require air bags. If you are hauling enough weight to need air bags to support the weight, you should drive slower around corners.
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Old 06-22-2018, 07:29 PM   #18
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I've always preferred Firestone over Airride. The Firestone bags are heavier duty IMO (and as such usually have a higher weight rating).
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Old 06-23-2018, 05:59 AM   #19
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Quote:
Originally Posted by Seann45 View Post
PLEASE DO NOT use T fittings when you install air bags.. when you go around a corner and the vehicle leans to one side the air in that bag is forced out to the bag on the unloaded side. This is not a good situation. Each bag should have its own inflator.. As for where to get bags I am very happy with the kit I got from Hellwig Spring. Call Nancy at 500-367-5480 for superior service. (no I have nothing to do with the company or get anything for this endorsement)
I would have to think that little 1/4" line would take some time to transfer all that air. The volume is too much. Just thinking out loud.

Of course with the T you can't account for uneven loads.
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Old 06-23-2018, 10:51 AM   #20
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Either way you look at this.., the transfer of air from one to the other makes the low side bag virtually useless when cornering or on uneven surface where the trailer sways from side to side.
They would function well when hitting frost heaves and expansion joints straight on but any kind of weight shifting due to cornering or pot holes is defeating the purpose of the airbags.
We once had an old Kenworth with a picker on it that had a bad check valve or something wrong with it that enabled the air to leave the bag when cornering and we called it the rollover simulator. Scary!
How hard is it to put a shot of air in both bags?
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