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Open Roads Forum  >  Fifth-Wheels

 > Trailer sway milestone 377mb

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fowlthing

Roger, AR

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Posted: 09/03/22 07:26am Link  |  Print  |  Notify Moderator

2020 Model. Pulling with 2021 Ram 2500 Diesel. Have 3000 miles plus with no issues.

Now at speeds as low as 30 mph can hit a bump and side to side rocking translates into trailer sway. Worse going uphill. Had a trip this weekend and put two new tires on the rear axle. My tire shop only had two.

Is this axles out of alignment?? Shocks on the truck? ( 30k miles on truck).

I pulled the tires off and bearings are good. Measured and axles are same distance between tires. Did not measure to the pin.

Tread is still good on front axle. And was good on the two that were replaced. Wear is even. Could not detect that they were out of round when jacked up and spun the wheels.

Any help is welcome. Have years experience of towing trailers. The sway is dangerous. Not a slight annoyance. Thanks.

Y-Guy

Tri-Cities, WA

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Posted: 09/03/22 07:49am Link  |  Print  |  Notify Moderator

Moving to the Towing forum from Tech Issues.

Lwiddis

Cambria, California area

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Posted: 09/03/22 08:00am Link  |  Print  |  Notify Moderator

Fully loaded what is the trailer weight and what is the tongue weight?


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


Grit dog

Black Diamond, WA

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Posted: 09/03/22 10:50am Link  |  Print  |  Notify Moderator

I’ve pulled a lot of poorly loaded trailers that had actual sway.
But never sway below below 45-50mph. Idk how it’s swaying so slow. Maybe with negative tongue weight?
IMO to go from fine one day to can’t pull over 30mph, whatever changed should be obvious?
Can’t think of any reason it would change.

* This post was edited 09/03/22 11:17am by Grit dog *


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

fowlthing

Roger, AR

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Posted: 09/03/22 11:03am Link  |  Print  |  Notify Moderator

Not sure but have not changed any weight and have over 3000 miles before this came up


2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram

Fisherman

Angus, Ontario, Canada

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Posted: 09/03/22 05:48pm Link  |  Print  |  Notify Moderator

Possibly a broken spring on the trailer.

afidel

Cleveland

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Posted: 09/03/22 06:39pm Link  |  Print  |  Notify Moderator

Fisherman wrote:

Possibly a broken spring on the trailer.


That's my vote, or spring perch. I'd investigate everything in the running gear including running each wheel up a ramp to see how the suspension and equalizer reacts.


2019 Dutchman Kodiak 293RLSL
2015 GMC 1500 Sierra 4x4 5.3 3.42 full bed
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BarneyS

S.E. Lower Michigan

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Posted: 09/04/22 02:46pm Link  |  Print  |  Notify Moderator

Moved to 5th Wheel forum from Towing


2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD


JRscooby

Indepmo

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Posted: 09/05/22 04:26am Link  |  Print  |  Notify Moderator

I know it's a grape/grapefruit but I feel I should tell the story, and the OP can take a look if he wants.
A driver tore the power divider out on a friend's International. Friend was out of town, called me to repair. While I had the differential out, I saw some cracks in frame crossmember that ran under the 5th wheel plate. Waiting on parts, and tools handy, I welded up the cracks. Few days later the driver was on Children's Band with another driver talking about how much better the truck was driving.

garyp4951

TN

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Posted: 09/05/22 07:19am Link  |  Print  |  Notify Moderator

Go to a scale first, and then start checking wether the problem is the truck or trailer.
The roads these days are pretty bad and a 42' trailer can cause problems if not loaded right.

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