Vibration while Towing Cargo Trailer

[SilverSlugger]

wow

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[Grumpaw]

Per the OP's original post, the vibration only occurs when the trailer is being towed, at any speed. Without the trailer, OP posted the Ranger is just fine.
Simply, the vibration is most likely something associated with the trailer.....either something is out of kilter with axle's, something not torqued down properly, like a spring perch, a bad tire/wheel/out of balance/not "trued", even a bad spindle or bearing.
I going out on a limb and state 99% sure it's something wrong with the trailer.

Additionally, the OP has posted in the past about towing a U-Haul trailer he rented, and that he had no problems towing it or any problems with the Ranger.....leads me to believe the new problem is with the new trailer.
OP posted he's taking trailer back to dealer, so hopefully he'll let us know the results.

 

[ljames]

I am betting on tire problems, seperation of tread or bulge.

 

[Cyclereckr]

Hello everyone....I just picked up a new 6x12 cargo trailer on Saturday and brought it home. Going to use it to travel around and bring my FJR1300 with me to ride wherever I go.
On the way home, I was about 30 miles in and started to feel a fairly significant vibration around 70mph. Up to that point, everything was smooth with no issues. I had to slow down below 60mph and it was still pretty bad so I exited the interstate and took back roads to my house. Anything above 50mph and it shakes pretty bad. Almost like what an unbalanced wheel would feel like at that speed..
Got home, I torqued the lugs on the new trailer as instructed and checked my air pressures on both truck and trailer.
Still no change.....I took it to storage to park it and did the same thing on the way there.

Unhooked the truck and drove home....no vibration.

The trailer only weighs 2250 dry. I could swear it was the truck giving the vibration, but I don't know. Taking the trailer back this week to have them check it.
Anyone else have this type of issue? Could it be the Drive Shaft out of balance at that angle or under load?
It's not like the trailer is super heavy and it pulls it easily.

Thanks in advance for any feedback.

Trailer tires may have flat spots
I always lift my trailer tires off ground when not in use

 

[Peragrin]

Hello everyone....I just picked up a new 6x12 cargo trailer on Saturday and brought it home. Going to use it to travel around and bring my FJR1300 with me to ride wherever I go.
On the way home, I was about 30 miles in and started to feel a fairly significant vibration around 70mph. Up to that point, everything was smooth with no issues. I had to slow down below 60mph and it was still pretty bad so I exited the interstate and took back roads to my house. Anything above 50mph and it shakes pretty bad. Almost like what an unbalanced wheel would feel like at that speed..

When you first got up to 60 and 70MPH you didn't feel anything and then it started later? and Now it does it all the time?

I would say a wheel lost it's balancing weight after a few miles, What did the trailer company say?

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