RV.Net Open Roads Forum: Towing: truck/trailer sway

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Towing

Open Roads Forum  >  Towing

 > truck/trailer sway

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 6  
Prev  |  Next
Sponsored By:
Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 07/26/20 10:25pm Link  |  Quote  |  Print  |  Notify Moderator

Fill up your rear tires and I’d run 40+ in front too. Maybe even 50 and air down if a bit rough.
That will help. Otherwise, you are pulling a big sail. Unless you have a similar basis for comparison, it may just be “normal.”


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

Rustycamperpants

Sugar Grove, Il.

Senior Member

Joined: 07/27/2014

View Profile


Offline
Posted: 07/27/20 03:04am Link  |  Quote  |  Print  |  Notify Moderator

It sounds to me that more weight needs to be transfered to the front axle. If your steering seems to be "wondering around" and semis give you fits when they pass, tilt your hitch down more to get better weight transfer to the front of youi tow vehicle. .


2009 Ford Expedition EB, 3.73, Equal-i-zer
2015 KZ Sportsman Showstopper 301BH

Hannibal

Tampa Bay Area

Senior Member

Joined: 04/12/2002

View Profile


Offline
Posted: 07/27/20 03:52am Link  |  Quote  |  Print  |  Notify Moderator

I’d recommend increasing tire pressure to the 51psi on the sidewalls for towing. Goodyear HT should be good for highway towing. Looking forward to your CAT scale results.


2020 F250 STX CC SB 7.3L 10spd 3.55 4x4 66 miles
2010 F250 XLT CC SB 5.4L 5spdTS 3.73 107k miles
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
2017 Jayco 28RLS TT 32.5'. Reese HP Trunnion 800

teejaywhy

Gilbert, AZ

Senior Member

Joined: 07/13/2005

View Profile


Offline
Posted: 07/28/20 12:50pm Link  |  Quote  |  Print  |  Notify Moderator

Taxman2436 wrote:

allkidd wrote:

Thank you for the quick replies!

Sounds like I need to get some weights of my truck and trailer. If I take my rig to a weight station on the highway will they take these weight measurements for me?


Not a weigh station. You can take it to a CAT scale at Pilot truck stop near you. Costs about $12.00 to weigh and should give you 3 weights, front axle, drive axle and trailer axle(s).


https://learntorv.com/how-to-weigh-a-travel-trailer/


The Yost Outpost
Gilbert, AZ
2007 GMC Sierra Classic 2500HD, Duramax LBZ
2019 Nash 23D

mkirsch

Rochester, NY

Senior Member

Joined: 04/09/2004

View Profile



Posted: 07/29/20 07:28am Link  |  Quote  |  Print  |  Notify Moderator

You definitely do NOT have sway.

There are not "multiple definitions" for sway. Sway is not a momentary bobble of the trailer hitting uneven road. Sway is not even the effect you feel from a passing bus or semi.

Sway is an ACTUAL loss of control, that you cannot recover from without extraordinary effort. Sway does not cure itself. Sway does not disappear as the distance between you and the semi increases. Sway always gets worse if left uncorrected, never better as time passes. You either hit those trailer brakes or you end up backwards in the ditch.

What you have is an adjustment issue. Perhaps not enough weight on the front axle of the truck. Perhaps your sway bar system is not being used correctly.


Putting 10-ply tires on half ton trucks since aught-four.

Bobbo

Wherever I park

Senior Member

Joined: 09/16/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 07/29/20 08:52am Link  |  Quote  |  Print  |  Notify Moderator

mkirsch wrote:

There are not "multiple definitions" for sway. Sway is not a momentary bobble of the trailer hitting uneven road. Sway is not even the effect you feel from a passing bus or semi.

Sway is an ACTUAL loss of control, that you cannot recover from without extraordinary effort. Sway does not cure itself. Sway does not disappear as the distance between you and the semi increases. Sway always gets worse if left uncorrected, never better as time passes. You either hit those trailer brakes or you end up backwards in the ditch.

I agree with this post. There is only one definition of "sway." However, there is correct and incorrect usage of the term "sway."

This video shows what "sway" really is.

Trailer Sway Video


Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB


Cummins12V98

on the road

Senior Member

Joined: 06/03/2012

View Profile


Offline
Posted: 07/29/20 09:55am Link  |  Quote  |  Print  |  Notify Moderator

FIRST thing to do is dump the soft stock tires and buy quality "E" rated tires for the truck.


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

bikendan

Camano Island, Wash.

Senior Member

Joined: 11/21/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 07/29/20 01:58pm Link  |  Quote  |  Print  |  Notify Moderator

allkidd wrote:

This spring we purchased our first trailer. It is a 28 foot Grey Wolf toy hauler. It weighs about 5000 lbs and we usually carry about another 1000 lbs.


IMHO, you need to take your combo to the scales and not use vague terms like about and around.
What year and model of Grey Wolf do you have? I don't know of any 28ft toyhauler that weighs 5000lbs. And have you weighed the actual loaded tongue weight? What's your truck's payload capacity?
I think you are underestimating your weights.


Dan- Firefighter, Retired">, Shawn- Musician/Entrepreneur">, Zoe- Faithful Golden Retriever(RIP">), 2014 Ford F150 3.5 EcoboostMax Tow pkg, 2016 PrimeTime TracerAIR 255 w/4pt Equalizer and 5 Mtn. bikes and 2 Road bikes


allkidd

Lee's Summit

New Member

Joined: 12/16/2005

View Profile


Offline
Posted: 07/29/20 05:44pm Link  |  Quote  |  Print  |  Notify Moderator

Busy day at the truck weight station. Listed below are my weights:

With WDS engaged:
Front axle truck 3040
Drive axle 3080
Trailer 4760

Wthout WDS:
Front truck 2680
Drive 3540
Trailer 4640

Truckonly:
5240

I don't have any idea what these numbers mean!

Thanks for the great help!

Bobbo

Wherever I park

Senior Member

Joined: 09/16/2007

View Profile



Good Sam RV Club Member

Offline
Posted: 07/29/20 06:34pm Link  |  Quote  |  Print  |  Notify Moderator

allkidd wrote:

Busy day at the truck weight station. Listed below are my weights:

With WDS engaged:
Front axle truck 3040
Drive axle 3080
Trailer 4760

Wthout WDS:
Front truck 2680
Drive 3540
Trailer 4640

Truckonly:
5240

I don't have any idea what these numbers mean!

Thanks for the great help!

We need front axle and rear axle separately on Truck only.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 6  
Prev  |  Next

Open Roads Forum  >  Towing

 > truck/trailer sway
Search:   Advanced Search

Search only in Towing


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.