RV.Net Open Roads Forum: Fifth-Wheels: Chucking - trouble shooting

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 Fifth-Wheels

Open Roads Forum  >  Fifth-Wheels

 > Chucking - trouble shooting

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next
Sponsored By:
rhagfo

Portland, OR

Senior Member

Joined: 07/06/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 02/01/20 10:27pm Link  |  Quote  |  Print  |  Notify Moderator

dkuntz wrote:

MFL wrote:

You're using the wrong number. With a FW all the pin wt goes on the rear axle. You have lots more available pin, likely 2500-2800 lbs, and still under axle rating. That payload is just the weight of your truck subtracted from a class 2 GVWR.

Jerry


I agree the truck can handle another 1,400lbs per the axle/tire ratings, but I’m not aware of any other “numbers to use” other than payload as its the most restrictive. Payload is what is calculated as any weight added to your truck, regardless of where on the truck its added. Being in Colorado with some serious grades and the fact that I’m double towing, I don’t play around with capacities....seen too many out of control trucks from people not respecting them.

Regular size 5W’s with the layout we wanted were too long for me to double tow, so I had to go to with the 1/2ton model to keep my overall length under 65’ for the State’s I’ll be towing through. Regardless, I’m asking about chucking improvement here as I already have the truck and trailer

If you are double towing you absolutely need more pin to compensate for the hitch weight on the back of the 5er. Just get a truck with enough capacity to handle the weight you are towing.


Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"


southernsky

Ponchatoula La.

Senior Member

Joined: 03/30/2005

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 05:57am Link  |  Quote  |  Print  |  Notify Moderator

Pulling a 5th wheel for over 10 yrs, bumper pulls before that. Three different trucks, three different 5th wheel trailers and not sure what "chucking" is. My rigs have pulled tight without bounce or noise. All three trucks were Ram 3500 duallies and I do run air bags on them. All three trailers have had some sort of equa flex suspension systems and air ride pin box. Guess I've been lucky or something to not have a the "chucking" problem


2019 Ram 3500 Laramie DRW Crew Cab 6.7 H.O. CTD 4X4
2016 Grand Design Solitude 369RL


eHoefler

ozark mountains

Senior Member

Joined: 10/22/2011

View Profile


Offline
Posted: 02/02/20 06:41am Link  |  Quote  |  Print  |  Notify Moderator

Check the location of you pin in relation to the center of axle. Chances are you are on center if not behind, common with short bed trucks, to get turning clearance. For proper loading and ride, center of pin needs to be 2"-4" ahead of center of axle. Moving your fifth wheel forward is a low cost improvement with great gains.


2019 Ram Limited, 3500, Crew Cab, 1000FTPD of Torgue!, Max Tow, Long bed, 4 x 4, Dually,
2006 40' Landmark Mt. Rushmore

TxGearhead

Texas

Senior Member

Joined: 04/17/2016

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 07:46am Link  |  Quote  |  Print  |  Notify Moderator

Andersen Ultimate hitch in the truck bed along with the locking plate to the king pin box.
^^Explain this a little more. Do you have a RotoFlex that has to be locked out, or a conventional Morryde with a rubber shear spring? I don't think the shear spring model needs to be locked out for a Andersen or PullLite hitch. But I may not be understanding what you're saying.
That aside, I would load up and get the pin weight up, get the truck on the overloads, go to a CAT scale, determine if it's still chucking, then get closer to your tire and axle limits, but not over.


2018 Ram 3500 CC LB DRW 4X4 Cummins Aisin Laramie Pearl White
2018 Landmark Oshkosh
2008 Bigfoot 25C9.4
2014 NauticStar 21 ShallowBay 150HP Yamaha
2016 GoDevil 18X44 35HP Surface Drive

ivbinconned

highway 16

Senior Member

Joined: 09/27/2003

View Profile



Posted: 02/02/20 09:26am Link  |  Quote  |  Print  |  Notify Moderator

At the risk of sending this thread off on a rabbit trail I have a question.
Does your truck have a performance “tune”?


Ram and 34 ft Cedar Creek

CarnationSailor

Carnation,WA

Senior Member

Joined: 12/21/2009

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 09:33am Link  |  Quote  |  Print  |  Notify Moderator

dkuntz wrote:

mapguy wrote:



A third thing is concerning the factory overload engagement. IS it staying fully engaged or fully disengaged? If spring is bouncing off overloads -the ride suffers greatly

Good luck!


I don’t know what this is or I’m not understanding what you’re referring to. Thanks.


My 2015 Silverado HD 2500 did not come with overload springs. GM put overloads only on the 3500 that year. I have to wonder if they put overloads on your 2019.

* This post was edited 02/02/20 09:43am by CarnationSailor *


2015 Crossroads Rushmore Springfield
2015 Chevy Silverado 2500HD Duramax


Thermoguy

Graham, WA

New Member

Joined: 01/04/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 10:25am Link  |  Quote  |  Print  |  Notify Moderator

Thank you for posting this question. I have a 2015 Silverado 2500HD and had a similar experience when I purchased our 5th wheel. We have been towing a 3 horse gooseneck with no issues, then got the 5th wheel and wow, what an awful tow. I honestly think it is the short bed of the 2500 that causes the chucking especially with the larger trailer. Your's is much longer than mine so probably much worst. I looked at the Anderson hitch for the light weight and ease of taking it in and out of the truck but want to try one before buying. My concern is the lack of positions it can be moved to. I believe you can move it up and down but not forward and back. I might be wrong, but that is what it looked like to me.

I have the B&W companion and at first I put it as far back as possible and tried to level the trailer with the positioning of the hitch. That was awful for the chucking. During a trip to Yellowstone, every night I moved the hitch to find a better position for the best ride. I had to move it forward quite a bit and my trailer is not perfectly level but not bad. I also found that if my fresh water tank is full, it rides better. Probably pulling some weight off the hitch. It is definitely a balancing act as it is not perfect, but I would guess it is the trade off of having a short bed and short wheelbase truck.

Good Luck, I'm sure you can find the balance without buying a lot of hardware to mask the chucking.

CarnationSailor

Carnation,WA

Senior Member

Joined: 12/21/2009

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 10:44am Link  |  Quote  |  Print  |  Notify Moderator

I am towing a 36 foot 5th with my 2500 HD short bed, TrailAir Tri-Glide pin box and Demco auto slide hitch. I get no chucking except for the occasional severely uneven highway seam/joint. Also, my 5th is 3 inches high in the front. Good luck.

ivbinconned

highway 16

Senior Member

Joined: 09/27/2003

View Profile



Posted: 02/02/20 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

The reasons I ask about a “tune” in the truck is because that became the source of my chucking in a long box 2016 Ram.
I came to the conclusion it was the truck because no matter which of my 3 fifth wheel trailers(cargo and flat deck and Cedar Creek) I towed it would chuck.
One should not assume it’s a hitch or trailer weight.
My tune was an EFI live tune. With the first version...no chucking. With the 2nd alternative one immediately I noticed the chucking. When the installer re-installed the tune with slight changes in the mapping...smooth sailing.
Hook your trailer onto some other trailers to confirm it’s not a truck issue.
I would also suggest you look at my post about trailer shocks.
If you have them the way they are mounted may make them useless and in fact be causing a ride issue with the trailer.

dkuntz

Colorado

Full Member

Joined: 02/03/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 02/02/20 01:30pm Link  |  Quote  |  Print  |  Notify Moderator

TxGearhead wrote:

Andersen Ultimate hitch in the truck bed along with the locking plate to the king pin box.
^^Explain this a little more. Do you have a RotoFlex that has to be locked out, or a conventional Morryde with a rubber shear spring? I don't think the shear spring model needs to be locked out for a Andersen or PullLite hitch. But I may not be understanding what you're saying.
That aside, I would load up and get the pin weight up, get the truck on the overloads, go to a CAT scale, determine if it's still chucking, then get closer to your tire and axle limits, but not over.


Rotoflex - per Andersen they have to be locked out from being able to rotate.


2019 GMC Sierra 2500 Duramax, short bed
2020 Keystone Cougar Fifth Wheel 29MBS
Diamondback cover - Sided loaded
2017 Polaris Sportsman 450
2015 Polaris Sportsman 570 X2

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next

Open Roads Forum  >  Fifth-Wheels

 > Chucking - trouble shooting
Search:   Advanced Search

Search only in Fifth-Wheels


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.