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Trailer sway issies

fowlthing
Explorer
Explorer
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Posted: 09/03/22 08:26am Link | Quote | Edit | 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.
2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram
32 REPLIES 32

blt2ski
Moderator
Moderator
Cummins12V98 wrote:
Man carries a 100# sack over his shoulders easily. Man is asked to carry the sack only this time it's 150# and he is not steady on his feet.


Reality, probably the issue. Broken spring, coil. Put stronger ones on, problem is generally speaking solved!
A dealer will only replace stock for stock. An after market spring shop will replace 6500 lb springs for 8000 lb springs/coils, a safety net is now available on this part.

Marty
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
2014 Chevy 1500 Dual cab 4x4
92 Red-e-haul 12K equipment trailer

Cummins12V98
Explorer III
Explorer III
Man carries a 100# sack over his shoulders easily. Man is asked to carry the sack only this time it's 150# and he is not steady on his feet.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

blt2ski
Moderator
Moderator
GMH wrote:
Cummins12V98 wrote:
fowlthing wrote:
Towed with a friends F250. No problems. So the truck is the culprit. Tires are worn. Will get to dealership for full check up


You simply are NOT listening to FACTS. Too much RV for any 250/2500 no matter how you slice it!

Culprit??? Not hardly as you are asking it to do something that it simply can't. Waste all the money they want but the truck is NOT the issue.

The truck may very well have damage that is causing the swaying….but even if the truck is repaired and brought up to spec, it is still not near enough truck for that trailer. Towing that trailer with that truck is an accident waiting to happen, and probably illegal.
OP: Please convince your brother to get a 350 dually or a smaller trailer.


Legal, is not the issue, he is legal in ALL 50 states of US, as long as he has enough paid for license registration! I've been pulled over in one of my rigs at 150% of its factory warranty weight rating, no overweight ticket, altho I did get a 10 day up my registration by 2000 lbs, as I was over my paid for amount.

It does sound like there is something wrong with the truck itself. Be it the tires on the truck have blown belts, too little psi, tread, too soft of sidewalls....broken coil spring, bracket that holds them in place, anti sway bar.....something mechanical is broke.

Marty
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
2014 Chevy 1500 Dual cab 4x4
92 Red-e-haul 12K equipment trailer

fowlthing
Explorer
Explorer
truck is not lifted and tires are original from factory
2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram

GMH
Explorer
Explorer
Cummins12V98 wrote:
fowlthing wrote:
Towed with a friends F250. No problems. So the truck is the culprit. Tires are worn. Will get to dealership for full check up


You simply are NOT listening to FACTS. Too much RV for any 250/2500 no matter how you slice it!

Culprit??? Not hardly as you are asking it to do something that it simply can't. Waste all the money they want but the truck is NOT the issue.

The truck may very well have damage that is causing the swaying….but even if the truck is repaired and brought up to spec, it is still not near enough truck for that trailer. Towing that trailer with that truck is an accident waiting to happen, and probably illegal.
OP: Please convince your brother to get a 350 dually or a smaller trailer.

fj12ryder
Explorer II
Explorer II
Is the truck lifted? Or aftermarket tires?
Howard and Peggy

"Don't Panic"

Cummins12V98
Explorer III
Explorer III
fowlthing wrote:
Towed with a friends F250. No problems. So the truck is the culprit. Tires are worn. Will get to dealership for full check up


You simply are NOT listening to FACTS. Too much RV for any 250/2500 no matter how you slice it!

Culprit??? Not hardly as you are asking it to do something that it simply can't. Waste all the money they want but the truck is NOT the issue.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

fowlthing
Explorer
Explorer
Towed with a friends F250. No problems. So the truck is the culprit. Tires are worn. Will get to dealership for full check up
2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram

TXiceman
Explorer
Explorer
You have to remember that Ram in their great wisdom, went to coil springs on the back of the 2500 like they did on the 1500. So far, the coil springs do not handle weight as well as the leaf springs.

Ken
Amateur Radio Operator.
2023 Cougar 22MLS, toted with a 2022, F150, 3.5L EcoBoost, Crewcab, Max Tow, FORMER Full Time RVer. Travel with a standard schnauzer and a Timneh African Gray parrot

fowlthing
Explorer
Explorer
The ram set up is my brothers...I am posting asking for him.. I have the 350,
2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram

Cummins12V98
Explorer III
Explorer III
Why are you not looking at the FACT you have too much **** trailer for that truck as the cause???? WHY????????????? did you go from a 350 to a 2500???????????

Pulling with 2021 Ram 2500 Diesel
Grand Design Solitude 375RES
UVW 14200 lbs
GVWR 16800 lbs
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

valhalla360
Nomad III
Nomad III
10 pounds of sand in a 5 pound bag by the looks of it.

Maybe see if a buddy with a 1 ton dually can pull it and if they have the same issue. I'm betting the issue disappears.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV

fowlthing
Explorer
Explorer
Thanks..I agree having someone watch in another vehicle is a great idea. I don't see any bolts missing or loose on the sway bar..on the truck.

Thanks for all the input.
2017 Ford 350 SRW
Grand Design Solitude 375RES
may switch to a Ram

opnspaces
Navigator
Navigator
I keep thinking you have something broken on the trailer not on the truck. Can you maybe have somebody drive near you around 30 mph and watch the wheels when you hit a bump. Maybe get a few friends to follow, one driving the follow car and one filming on their phone for review later.
.
2001 Suburban 4x4. 6.0L, 4.10 3/4 ton **** 2005 Jayco Jay Flight 27BH **** 1986 Coleman Columbia Popup