Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-08-2014, 08:44 PM   #1
2 Rivet Member
 
2014 31' Classic
Southwest Michigan , Michigan
Join Date: Aug 2014
Posts: 38
New F-250 Truck, New Trailer = Rough Ride

Looking for some advise for my truck trailer set up. I have the following:

2015 F-250 power stroke crew cab short box 4X4.

2014 31' Classic - The trailer scales out at 8,000 lbs. with 800 lbs. tongue weight.

Equal-i-zer hitch 10,000 lbs. towing and 1,000 lbs. tongue weight with an adjustable shank to drop the trailer ball down so the trailer rides level.

I set up the hitch myself because the dealer botched the job completely. I used the measurements on the front and rear of the truck suggested by the manufacture and verified the set up on the scales to ensue the proper weight transfer.

After driving the rig from Michigan to Indiana last week we went over some concrete stretches of I-69 north of Ft. Wayne that put the truck and I'm sure the trailer into a non acceptable repetitive bounce. I could see the backend of some semis bouncing the same way. I was towing at 65 mph. I also tried 55 and 60 mph. It slowed the bounce frequency down as well as the amplitude but it was still there. Since we had time I disconnected the weight distributing bars and drove over the same section of road again at the three speeds. Same bounce. Without the bars the trailer did have sway issues, it was windy. So I feel the hitch is working correctly since I had the bounce with or without the bars.

I see a lot of F-250's pulling Airstreams and I sure they all don't have the bounce issues. The trailer and truck ride pretty nice on Asphalt and some stretches of concrete.

My Questions:
1. Is the suspension of the F-250 to stiff for a nice riding rig?
2. Would a Kelderman air suspension, spring removal, fix the problem?
3. What is everyone else doing? Has anyone gone to the air suspension to fix the problem?
4. Is it me? Am I missing something?

Thanks for any input.

Regards,

Doug
__________________

__________________
ratchet is offline   Reply With Quote
Old 10-08-2014, 08:54 PM   #2
2 Rivet Member
 
Moo1822's Avatar
 
2015 30' Classic
Kingston , New York
Join Date: Sep 2014
Posts: 26
Tagged for later...
__________________

__________________
Moo1822 is offline   Reply With Quote
Old 10-08-2014, 09:04 PM   #3
2 Rivet Member
 
TexasMitch's Avatar
 
2012 30' Classic
Pflugerville , Austin, TX
Join Date: May 2012
Posts: 20
In 2012 I had a new 2012 Silverado 2500HD and distinctly remember experiencing the exact symptoms you described when I picked up my 2012 30' Classic. For what its worth I also have the Equalizer hitch.

From what I recall it was the section of concrete roads in Texas that caused most of the trouble. I went on to tow at least 6000+ miles with that setup and don't recall many more issues.

Good luck to you!
__________________
TexasMitch is offline   Reply With Quote
Old 10-08-2014, 09:07 PM   #4
Rivet Master
 
SteveSueMac's Avatar

 
2012 27' Flying Cloud
W , New England
Join Date: Oct 2012
Posts: 5,410
Not 100% sure. A few random thoughts:


1) do you need more tongue weight? 10% may not be enough

2) on my hitch (ProPride), I've noticed if the yoke isn't even (left to right) on the a-frame, porpoising increases. I have no idea if you might have a similar problem

3) what does Ford want for your setup in terms of "front axle load restoration" or FALR? With my Chevy 2500, it can range from 0 to 50 to 100% depending on a lot of factors. Sounds like you've been to the scales - how much was lifted off the front end when you dropped the trailer on the ball and how much has been restored with WD applied - and then how does that compare with Ford's instructions?

These are random ideas - not sure if they'll help or not. Good luck!
__________________
SteveSueMac is offline   Reply With Quote
Old 10-08-2014, 09:08 PM   #5
Airstream Driver
 
PeterH-Airstreamer's Avatar

 
1997 30' Excella
1983 31' Airstream310
Austin , Texas
Join Date: Feb 2002
Posts: 3,375
Images: 51
Using a 1 ton TV pulling a 34' trailer, I had a terrible bounce using old short 1000 pound bars (which =~1200 bars on the new length bars). Since I changed to 800 pound bars on my Reese system, the bounce is very soft and independent.
__________________
1990 29' Excella Trailer
1996 Airstream B190
1997 30' Excella Trailer
AIR #13
PeterH-Airstreamer is offline   Reply With Quote
Old 10-08-2014, 09:10 PM   #6
Rivet Master
Commercial Member
 
Andrew T's Avatar

 
2008 34' Classic
1960 17' Pacer
London , Ontario
Join Date: Aug 2007
Posts: 955
Hi Doug

The Equalizer brand hitch is not doing you any favors from a ride standpoint. A tapered torsion bar will help quite a lot.

Make sure you have enough pressure on the torsion bars to keep the rear suspension off of the helper springs.

Weigh your combination and the use the correct tire pressure for the weight your tires are carrying.

Change the Airstream to P235/75R x 15" XL tires. Run them at 50 psi.

Andy
__________________
Andrew Thomson
London, Ontario

"One test is worth a thousand expert opinions."
Tex Johnston, Boeing 707 test pilot
Andrew T is offline   Reply With Quote
Old 10-08-2014, 09:28 PM   #7
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Quote:
Originally Posted by Andrew T View Post
Hi Doug

The Equalizer brand hitch is not doing you any favors from a ride standpoint. A tapered torsion bar will help quite a lot.

Make sure you have enough pressure on the torsion bars to keep the rear suspension off of the helper springs.

Weigh your combination and the use the correct tire pressure for the weight your tires are carrying.

Change the Airstream to P235/75R x 15" XL tires. Run them at 50 psi.

Andy
From my experience towing with a couple of 3/4 ton trucks now, Andy's statement above is correct, and very important.

As you know, the truck will handle the weight without weight distribution, but if you don't have enough WD, the truck will be riding on the rear overload springs making the ride rougher than if you have proper distribution.

However, there are some of the concrete highways with humps at the joints that make the ride horrible. The only things I can tell you about that is to either slow down quite a bit, or take a different route. The ride on those type roads is bad even with a 1/2 ton truck.
__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 10-09-2014, 12:19 AM   #8
Got gandkids?
 
Jim & Susan's Avatar

 
1973 27' Overlander
'Possum Holler , Georgia
Join Date: Oct 2004
Posts: 5,406
Images: 39
Quote:
Originally Posted by SteveH View Post
......... However, there are some of the concrete highways with humps at the joints that make the ride horrible. The only things I can tell you about that is to either slow down quite a bit, or take a different route. The ride on those type roads is bad even with a 1/2 ton truck.
I think Steve may be on to something in this last paragraph.

There was a thread here recently about the poor state of the Interstate highways in Indiana. No offence to the nice folks in Indiana. We traveled I-16 in our beloved Georgia about two years back from end to end, Macon to Savannah. BEAT ME TO DEATH. It was the road, not tow setup. There's a thread about that adventure as well. We were towing a 4000 # Airstream with an F-150 that normally has a very soft ride.

Jim
__________________
www.nesa.org

Air No. 6427
Jim & Susan is offline   Reply With Quote
Old 10-09-2014, 12:45 AM   #9
4 Rivet Member
 
arktos55343's Avatar
 
1972 25' Tradewind
Hopkins , Minnesota
Join Date: Sep 2012
Posts: 457
You might also consider an AirSafe hitch....which uses an industrial air bag to isolate the up and down movement of the back of the TV...and transmits only a small percentage of that movement to the tongue of the TT. I tow with a 2003 Ford F250 SuperDuty v10 Manual. The ride is very rough unloaded. But when I hook up the TT, the ride smooths out a lot.
__________________
arktos55343 is offline   Reply With Quote
Old 10-09-2014, 12:53 AM   #10
Rivet Master
Commercial Member
 
New Borockton , Alabama
Join Date: Sep 2002
Posts: 1,288
Images: 21
Did Inland Andy just give up on this? Sorry but haven't watched in a while.
__________________
Randy...Converters, Inverters, Trimetric, Surge Protectors, Zamp Solar, AGM Batteries
www.bestconverter.com
68 Overlander is offline   Reply With Quote
Old 10-09-2014, 01:00 AM   #11
Rivet Master
 
J. Morgan's Avatar

 
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton , Arkansas
Join Date: Mar 2013
Posts: 5,044
Images: 11
New F-250 Truck, New Trailer = Rough Ride

Some roads are just going to be rough to tow over, there really isnt anything you can do about it other than what you tried.

It used to be worse, whole states used to be miserable....

(Louisiana, Arkansas, and Mississippi used to be the worst imho, MS is much much better now, AR and LA suck less than they used to.
__________________
The fact that I am opinionated does not presuppose that I am wrong......

J. Morgan is offline   Reply With Quote
Old 10-09-2014, 01:48 AM   #12
Rivet Master
 
ROBERTSUNRUS's Avatar

 
2005 25' Safari
Salem , Oregon
Join Date: Mar 2006
Posts: 7,268
Images: 18
Blog Entries: 51
Hi, Take the overload springs off you don't need them. Make sure that your "L" brackets are located at the max distance 32"s. And some roads are the cause and you can't do anything about it.
__________________
Bob

2005 Safari 25-B
"Le Petit Chateau Argent"
[ Small Silver Castle ]
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
ROBERTSUNRUS is offline   Reply With Quote
Old 10-09-2014, 03:44 AM   #13
rbs
4 Rivet Member
 
rbs's Avatar
 
2015 30' Classic
Decatur , Illinois
Join Date: Apr 2010
Posts: 277
Blog Entries: 2
I-69 Fort Wayne IN

Quote:
Originally Posted by ratchet View Post
Looking for some advise for my truck trailer set up. I have the following:

2015 F-250 power stroke crew cab short box 4X4.

2014 31' Classic - The trailer scales out at 8,000 lbs. with 800 lbs. tongue weight.

Equal-i-zer hitch 10,000 lbs. towing and 1,000 lbs. tongue weight with an adjustable shank to drop the trailer ball down so the trailer rides level.

I set up the hitch myself because the dealer botched the job completely. I used the measurements on the front and rear of the truck suggested by the manufacture and verified the set up on the scales to ensue the proper weight transfer.

After driving the rig from Michigan to Indiana last week we went over some concrete stretches of I-69 north of Ft. Wayne that put the truck and I'm sure the trailer into a non acceptable repetitive bounce. I could see the backend of some semis bouncing the same way. I was towing at 65 mph. I also tried 55 and 60 mph. It slowed the bounce frequency down as well as the amplitude but it was still there. Since we had time I disconnected the weight distributing bars and drove over the same section of road again at the three speeds. Same bounce. Without the bars the trailer did have sway issues, it was windy. So I feel the hitch is working correctly since I had the bounce with or without the bars.

I see a lot of F-250's pulling Airstreams and I sure they all don't have the bounce issues. The trailer and truck ride pretty nice on Asphalt and some stretches of concrete.

My Questions:
1. Is the suspension of the F-250 to stiff for a nice riding rig?
2. Would a Kelderman air suspension, spring removal, fix the problem?
3. What is everyone else doing? Has anyone gone to the air suspension to fix the problem?
4. Is it me? Am I missing something?

Thanks for any input.

Regards,

Doug
That is the worst newly constructed road that we have ever been on, we avoid it. I don't think you could find any setup to eliminate the bouncing on that section of Interstate. I can't believe the people of Indiana put up with that.
__________________
rbs is online now   Reply With Quote
Old 10-09-2014, 07:25 AM   #14
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,191
Your problem is not so much the truck, but the road you were on. Avoid it if at all possible.
__________________

__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
rough ride? wannaroam Axles 1 11-06-2006 11:00 AM
Rough ride on some concrete freeways MNM Member Introductions 26 04-01-2006 08:48 AM
Help with Rough Ride in Tow Vehicle erik.ness@hp 1997 - 2004 Bambi 19 06-28-2005 01:39 PM
Rough Ride CACTUS Axles 11 04-19-2005 11:14 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.