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Old 07-12-2016, 02:06 PM   #31
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Originally Posted by GeeTee View Post
Some of the stuff mentioned comes with years of RV`ing experience - one would look at my setup and realize immediately i have a problem, i didnt see it although it was staring me in the face. It`ll get better with though!
There's definitely a learning curve . As far as documentation, most of those things are the same more or less. When you have time, look around online for one similar and glance at it. The principle is the same even if it's not the exact same hitch. My first one I had to adjust it about six times over three trips before I had it where I like it. It came much easier with my next two.

Any problems, just ask...somebody around here will help you out!
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Old 07-12-2016, 03:13 PM   #32
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You must only have normal riding preasure in your air bags for initial set-up. 5 to 10 lbs. The air should be used to take sag out of rear end after. If you set-up with 30lbs your truck is way to high.
When I was researching getting a new hitch I talked directly to Equal-I-Zer and Blue Ox. Both told me the airbags should be inflated to desired pressure before setting up the hitch. They said changing pressure after the setup would have an affect on the initial settings.
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Old 07-12-2016, 03:17 PM   #33
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GeeTee - I agree with all who've pointed out the high nose and the need to properly adjust your WD hitch. In my case, the setup was perfect if you just use measurements of the front and rear fenders. At the scales the front axle was within 200 pounds of the truck alone weight -close, but I didn't like the way the whole rig handled. Adjustment of the spring bars one bolt hole higher got the front axle to within 60 pounds of the truck alone weight and made a big difference in stability/handling. So... find instructions for your brand of hitch on line, adjust it by measurement and you'll be close, fine tune it at the truck scales and you'll be happy. IMO, you should not put air in your bags until after you've got the hitch adjusted properly. Then add just enough air to very slightly lift the back of the truck. This has the effect of giving you a higher spring rate to deal with the extra weight, but does not affect how much weight is distributed by your WDH. Hope this helps.
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Old 07-12-2016, 03:30 PM   #34
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Just my $.02 as well... What is the levels of your tanks? With a big old trailer comes (sometimes) bigger tanks... If they are somewhat filled they slosh and that is another several hundreds lbs goign from side to side and resonating with your already loosey goosey travels.
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Old 07-12-2016, 03:42 PM   #35
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I also found lowing your speed helps also. Later RJD
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Old 07-12-2016, 03:53 PM   #36
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Originally Posted by emm-dee View Post
When I was researching getting a new hitch I talked directly to Equal-I-Zer and Blue Ox. Both told me the airbags should be inflated to desired pressure before setting up the hitch. They said changing pressure after the setup would have an affect on the initial settings.
It is funny how many differing opinions these guys will give. The way I was advised, and read was the weight distribution hitch is the most important tool for distributing the trailer weight through-out the TV & TT for egual distribution (level). Note that this is one initial set-up of your complete system with the truck in its normal driving condition. Once this has been established and you know the proper positioning of the hitch you could fill bags prior to hook-up. My recommendation is set-up once first with 5 to 10 lbs in bags get all your measurements for truck and trailer and hook-up. fill bags to reduce sag. After this first set-up and you know what amount of air is needed, I say then you can always fill your bags first. Hope you have better travels.
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Old 07-12-2016, 03:56 PM   #37
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Sounds like wdh companies do not give out same info. Later RJD
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Old 07-12-2016, 04:44 PM   #38
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It is funny how many differing opinions these guys will give. The way I was advised, and read was the weight distribution hitch is the most important tool for distributing the trailer weight through-out the TV & TT for egual distribution (level). Note that this is one initial set-up of your complete system with the truck in its normal driving condition. Once this has been established and you know the proper positioning of the hitch you could fill bags prior to hook-up. My recommendation is set-up once first with 5 to 10 lbs in bags get all your measurements for truck and trailer and hook-up. fill bags to reduce sag. After this first set-up and you know what amount of air is needed, I say then you can always fill your bags first. Hope you have better travels.

It is tough to come up with a solution over the internet.. Like my tank levels comment, the other thing I found is the better the WDH the happier one will be.. When running at / close or dare I say over weights the cheap WDH just did not please me. I started with a cheap ($200 maybe) curt set up that looks similar (not saying it is) WDH. It was loose and the friction sway controllers just never impressed me. I switch to a much better (IMO) setup with integrated sway control.
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Old 07-12-2016, 04:49 PM   #39
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Air bags need to be filled prior to setting up your WDH (weight distribution hitch).
Changes in air bag pressure increase and decrease the height of not only rear of the truck, but also the height of your hitch, coupler and front of the trailer. Hitch height changes DO effect load distribution.
Consider this: Common practice for hooking or unhooking a trailer from a TV (tow vehicle) that utilizes a LDH (load distributing hitch) with load bars, is to lift the front end of your trailer with your tongue jack, which tilts your truck forward, and tilts the trailer backwards. These opposite tilts, unload the bending stress on the load distribution bars, making it easier to hook/unhook the bars from the L-brackets on the trailer. Raising the rear of your TV by adding air to your airbags effectively does the same thing. Not only does it raise the rear of the vehicle, it reduces the bending forces on the load bars. The reduced bending load on the bars, effectively reduces the amount of weight being transferred to the front axle (load distribution) and also reduces the sliding friction between the bars and the L-brackets. The friction (resistance to sliding) between the load bars and the L-brackets is what resists sway (side to side rotation of the trailer in reference to the TV direction). So load distribution and anti-sway is reduced.

In summary: lifting the rear of your vehicle with air bags (after WDH was properly configured) changes the pitch of your TV and trailer in regards to each other, which counteracts load distribution and anti-sway properties of the hitch, and can drastically reduce both the load distribution to the TV's front axle and sway resistance.

I learned this by personal experience. I suffered increased trailer sway following installation of air bags until I readjusted my hitch for the increased ride height. It took me a while to understand why my changes had caused the results I was seeing. Being a licensed structural engineer, my curiosity got to me and I actually went as far as calculating the loads and modeling how changes effected the resultant loads.

Hopefully my explanations make sense and are helpful. Good luck and happy trailering!
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Old 07-12-2016, 05:09 PM   #40
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Would like a picture of your sway bar where it tightens. A top view would be best.

Also, the inner bar on the sway bars get glazed fairly quickly. I always power wire brushed both sides of mine and occasionally just a very light grind to give the brake pad material a little more grip. Also ran dual sway bars on our travel trailers. Just have to remember to loosen them when on rain/snow slick highways. Don't ask how I learned that!!!
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