Do Parts of Blue Ox SwayPro Weight Distribution System Wear Out

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Question:

I have a Blue Ox Sway Pro an older unit that I purchased used. I tighten up the tension on the sway bars but it seems to immediately become loose after each tow. I also am experiencing extreme sway on windy days. Is there anything inside that could wear out and cause it to lose tension or is my new trailer too heavy for the sway bar that I own? The new trailer is 32, weighs about 9k lbs, and has about 850lbs tongue weight. Not sure which model sway pro that I own so I dont know the rating. But the sway I am experiencing is too excessive. Im considering purchasing the 3P hitch system but dont want to waste money if I can simply replace the blue ox if it is worn out.

asked by: JoeW

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Expert Reply:

It is hard to say if your trailer sway problem is the result of worn parts in your Blue Ox Sway Pro weight distribution system, incorrect set-up, incorrect loading of the trailer or if this specific set-up simply is not rated correctly for your trailer's actual fully-loaded tongue weight (TW). Any one of these issues, or a combination, could be the cause for your handling concerns.

Weight distribution/sway control (WD/SC) must be tuned to the actual trailer tongue weight. This is the sum of the loaded trailer's actual measured TW plus the weight of anything in the tow vehicle that sits behind the rear axle - say a big cooler or a generator - since that cargo weight will act just like trailer TW. We offer a handy scale # e99044 for measuring. Ideally your total TW will fall right near the middle of the system's operating range.

If your loaded trailer weighs 9000-lbs and your TW is only 850-lbs, then your sway could be a result of this too-light TW. TW should be around 12- to 14-pecent of the trailer's gross weight. Any less TW and your trailer's rear-end may be so heavy that it erupts into sway, like the weight at the end of a pendulum. Before re-installing your WD/SC system re-load your trailer to get its TW close to 14- or 15-percent. See how it handles. If the sway is reduced, then you can re-install the WD/SC system to see if gets you the rest of the way.

WD/SC systems like the Sway Pro can be fitted with replacement spring bars which are the parts rated for your trailer TW. You may simply need to replace the spring bars for a set more appropriately rated for your trailer's actual TW. If you can find any reference numbers on your current springs bars please let me know.

expert reply by: Adam R

0

Answer 1

We are no longer carrying Equal-I-zer weight distribution hitches but we do have several others that do a great job. I have attached a link to our product page that lists the systems with sway control you can check out. If you are looking for a…

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Answer 2

Congrats on the new travel trailer! No, you are not calculating everything for payload correctly. The 90 lbs of the Blue Ox SwayPro Weight Distribution item #BXW1000 does not get added to tongue weight. It distributes weight from the rear of your VW…

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Answer 3

An underslung trailer coupler is one that attaches to the bottom of the trailer frame and an overslung one is one that attaches to the top of the frame. The Replacement Head for Blue Ox SwayPro Weight Distribution Systems part #BXW4011 is for…

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Answer 4

My contact at Yates Rubber advises that a nominal 8-inch keel roller does not measure exactly 8 inches; typically they are slightly smaller than the specified size, much the way a piece of 2 x 4 lumber is not exactly 2-inches by 4-inches. I took…

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Answer 5

We do offer the Trailer Connector Adapter, #HM47425, which converts a 7-pole round connector to a 7-pole flat connector. This adapter works for tow vehicles with combined taillight wiring, meaning that the turn signals and brake lights run on the…

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Answer 6

I have added a photo detailing the wiring connections for the Pollack Heavy-Duty, 7-Pole, Round Pin conncetor, #PK11700, see link. This is a SAE J560 compliant connector. The wiring diagram for the vehicle side connector, #PK11720, is pictured also.…

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Answer 7

An underslung trailer coupler is one that attaches to the bottom of the trailer frame and an overslung one is one that attaches to the top of the frame. Measuring is not required if you just take a look at your coupler and see where it attaches to…

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Answer 8

I looked up pictures of the taillights that are on the 3110 Featherlite trailers and for the LED version of them you would want the part #STL36RB and #STL37RB. It looks like the spare tire mounts for your trailer are something you would have to get…

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Answer 9

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…

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Answer 10

There is a trailer wiring harness for the 2020 Ford Edge Titanium with Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part #C73FR which will plug in behind the tail lights and give you a 4-pole flat on the Edge to power…

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Do Parts of Blue Ox SwayPro Weight Distribution System Wear Out

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