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Old 08-25-2013, 08:22 PM   #1
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25z excessive sway

Hi I have a 2006 25z and pull it with a 2012 GMC Sierra 1500 using a reese pro series with 1200# bars. I get alot of sway from wind and traffic. What can I do to make this better?
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Old 08-25-2013, 09:01 PM   #2
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The root cause could be a number of issues like; lacking proper tongue weight, WDH not adjusted correctly, TT not towing level, TT tires under inflated, etc.. I will assume that you are using a standard friction control sway bar and it's working properly.

For the 25Z the 1,200lb rated WDH is more then enough hitch when you consider the 25Z has a UVW of 4,700lbs and a GVWR of 6,000lbs. The loaded tongue weight should be 13% to 15% of the loaded TT weight on a 28ft long TT. For example; if the 25Z loaded weighed 6,000lbs (GVWR), then the recommended loaded tongue weight would be 700lbs to 900lbs........, thus the 1,200lb rated WDH is more then enough.

IMO a visit to a CAT scale will tell you a lot (if WDH adjusted correctly, TT loaded tongue weight adequate, TV/TT weight limit check, etc.). The following JOF link is a TV/TT CAT scale weigh-in "How To": https://www.jaycoowners.com/showthrea...igh-Your-tt-tv

In most cases the root cause of frequent TT sway is improper TV/TT weight distribution, and/or WDH adjustment. There are other possibilities, but I would in the process of elimination perform the CAT scale visit first.

If you can, post a close-up side view pic of your WDH with your TV/TT hitched...., sometimes the root cause can be obvious.

Hope this helps.

Bob
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Old 08-25-2013, 09:46 PM   #3
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Tire pressures are at max, I have measure the body height and it is good. I have no scales close. I will work on a picture. Also I am not using any sway control.
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Old 08-26-2013, 01:52 AM   #4
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Quote:
Originally Posted by sklump View Post
Tire pressures are at max, I have measure the body height and it is good. I have no scales close. I will work on a picture. Also I am not using any sway control.
You answered your own question with the last part of your reply. It is the sway control that well, keeps the trailer from swaying in the wind and when traffic goes by. I think if you add this you will notice a large improvement in your towing expierence.
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Old 08-26-2013, 12:20 PM   #5
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Is a friction type good enough or do I need a sway control hitch set up?
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Old 08-26-2013, 12:58 PM   #6
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I would skip the friction bar and if you can't afford a ProPride 3P, look into a hitch setup that has built in sway control. Just remember that most WDH's with sway only lessen the sway, the 3P eliminates sway 100%. They are pricey but well worth the cost. I know, I just upgraded to one.
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Old 08-26-2013, 08:06 PM   #7
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Best bang for your buck for sway control is the Reese Dual-cam set up. Crosswinds, trucks, uneven pavement...nothing affects my trailer. Little easier to swallow than $3000.00 for the Hensley or Pro-pride. Don't get me wrong...the Hensley or Pro-pride are incredible hitches, just WAY out of my price range.
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Old 08-26-2013, 08:37 PM   #8
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Quote:
Originally Posted by sklump View Post
Is a friction type good enough or do I need a sway control hitch set up?
A standard friction control sway bar will work, but WDH manufacturer's recommend that two of them be installed (one on each side) on TT's longer then 25ft.. (even one will make a difference).

Unfortunately I believe that the Reese Pro-Series WDH isn't compatible for incorporating the Reese HP Dual Cam kit because the Pro-Series spring bar tails are straight (radius spring bar tails are required).

The next step above a standard friction control sway bar, and used by the vast majority of folks towing HTT's/TT's is the "Equal-i-zer" brand WDH and the "Reese" HP Dual Cam brand WDH (Reese Strait-Line WDH)....., both of these WDH's have integrated sway control and are both extremely effective at handling a sway event should one surface.

Bob
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Old 08-26-2013, 08:38 PM   #9
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Is a friction type good enough or do I need a sway control hitch set up?
I have good performance from an Equalizer hitch. A simpler set-up than Reese Dual Cam.
If you want a least-cost option, then a friction bar anti-sway may be enough for your application. Many people find they are enough for them. I chose a hitch with the built-in anti-sway and have been very happy with it.
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Old 08-26-2013, 09:17 PM   #10
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We have a very similar setup and use a single friction sway bar. It does a decent job. It is also really important to make sure you have enough tongue weight, we are lucky to have a CAT scale 15mins away. I also recently purchased a Sherline tongue weight scale. They are little pricey, but it helps me keep my TW correct w/out having to go to a scale.
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