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07-25-2017, 11:25 AM
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#1
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Rivet Master 
1988 25' Excella
1987 32' Excella
Knoxville
, Tennessee
Join Date: Oct 2010
Posts: 2,669
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Is there a hitch that keeps trucks from "sucking" a trailer?
10 years with a Reese St Line. Pretty happy. But when overtaken by a truck it pulls the rig to it. No sway or wiggle, just the sideways pull. And it seems that it has gotten worse or I am more sensitive to it or last week it was worse because of the winds. Do all hitches allow this to happen? What about the VPP hitches? Truck is a 2500 with good tires. Even a large SUV at speed causes some "pull". I have close to full return weight on the front axle when hitched. Will less pressure on the wt bars make the pull rose or better?
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07-25-2017, 12:10 PM
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#2
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Rivet Master 
2017 26' Flying Cloud
Tampa
, Florida
Join Date: Feb 2017
Posts: 2,997
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I had semi buffeting when I had leaf springs. It allowed more sideways movement.
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07-25-2017, 12:29 PM
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#3
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Rivet Master 
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,001
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How often do you re calibrate the Reese? They ware over time and can change the way the bars sit on the saddles. Another consideration is the bars are not always the same length and if switched side to side can have the effect of actually being additive to sway rather than subtractive.
Set the hitch up and mark the bars as to side used.
If that fails get an Andersen hitch. I have forgotten about simis.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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07-25-2017, 12:30 PM
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#4
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Rivet Master 
2005 30' Classic
Burlington
, Ontario
Join Date: Sep 2008
Posts: 2,743
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Never noticed it with the Hensley and I would guess the Proprde would be the same
Most often, unless I am paying lots of attention to the rear view mirrors, I don't realise a truck is passing - no matter what the relative speeds - until he gets level wth the driver's window and I see it!
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07-25-2017, 12:40 PM
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#5
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Rivet Master 
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 9,924
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Very rarely do I feel it with Hensley. I did with all my other hitches. Only time now is when there is a strong side wind and the semi blocks that side wind, a steering adjustment is needed. Certainly not a push or "suck".
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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07-25-2017, 12:52 PM
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#6
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Rivet Master 
2012 25' FB International
Trent Woods
, North Carolina
Join Date: May 2013
Posts: 1,692
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I have a ProPride and I did notice it with my 1/2 ton Silverado. I do not notice it with my new 3/4 ton Silverado.
Larry
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07-25-2017, 12:59 PM
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#7
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Half a Rivet Short
2017 30' Classic
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 6,238
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Hi
I notice a lot of things running down the road. Trucks passing and pushing me around (either on interstates or on little roads) has never been a big issue. I just have a plain vanilla Equal-i-zer. TV is a "horrible / worst ever" 2017 F-250 4x4 (that I'm very happy with).
Bob
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07-25-2017, 01:04 PM
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#8
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Rivet Master 

2002 30' Classic S/O
Melbourne Beach
, Florida
Join Date: Nov 2013
Posts: 3,128
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Classically, the compressed "bow wave" of air in front of the truck pushes the rear of the trailer to the right which pushes the front of the trailer to the left, steering the truck to the right. It seems like the trailer is being "sucked" to the truck. The normal reaction is to fight this right movement by steering left. The next thing that classically happens is when the compressed bow wave passes the trailer axle, it then pushes the front of the trailer to the right which pushes the front of the truck to the left, reinforcing the steering previously applied.
With my Equalizer, the sway control pretty much eliminated the effect of the bow wave on the rear of the trailer, but I still felt the truck trying to go left when the bow wave hit the front of the trailer/rear of the truck. Actually, it was really no worse than what happened with just the truck alone. The amazing thing was that some trucks did it and some didn't. Further, even some small cars would do the same thing.
You may just need to readjust your anti-sway.
I recently changed to a ProPride (for other reasons) which is supposed to eliminate this but I haven't towed with it on the highway yet so I can't offer any actual experience.
Al
__________________
"You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265
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07-25-2017, 01:12 PM
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#9
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Rivet Master 
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 9,924
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Each of my hitches had progressive improvement.
1) Draw Tite with WD and a friction sway bar (However, that was with my old square box trailer)
2) Equalizer (AS)
3) Reese straight line dual cam (AS)
4) Hensley (AS)
Each was progressively better in passing trucks and sway control.
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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07-25-2017, 01:24 PM
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#10
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Rivet Master 
1997 30' Excella
1961 26' Overlander
1954 22' Flying Cloud
1981 28' Airstream 280
San Antonio
, Texas
Join Date: Jul 2009
Posts: 1,421
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Whenever I see a semi coming, I always move a bit farther to the right.
Seems to help.
2009 2500HD 4WD crew cab 6.5 foot bed 6.0ltr. I tow at 65mph
__________________
Bruce
WBCCI# 9259 AIR# 38927 TAC-TX 14
Stop Littering-Spay & Neuter-- Adopt From Rescue
No amount of time will erase the memory of a good dog.
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07-25-2017, 01:39 PM
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#11
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Rivet Master 
2012 25' Flying Cloud
Battle Lake
, Minnesota
Join Date: Jun 2009
Posts: 7,716
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Same truck, same Airstream, our experience went like this.
1) Equal-I-Zer. Good weight distribution, poor flexibility, pushed uncomfortably by side wind and passing semi's.
2) Andersen. Very poor weight distribution possible, very poor flexibility. Pushed badly by side wind and passing semi's. Friction sway device also uncomfortably resisted return of trailer to centerline on slippery roadways when pushed out by sidewinds and semi's.
3) ProPride. Excellent weight distribution and flexibility. No side wind or semi effect on the steering axle, it's all projected to our truck's rear axle (like a semi) where it is stopped before it begins. Absolute comfort in all driving conditions.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
The Truth is More Important Than the Facts
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07-25-2017, 01:56 PM
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#12
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Rivet Master 
2012 19' International
Southeastern MI
, Michigan
Join Date: Aug 2016
Posts: 1,738
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Quote:
Originally Posted by Bill M.
10 years with a Reese St Line. Pretty happy. But when overtaken by a truck it pulls the rig to it. No sway or wiggle, just the sideways pull. And it seems that it has gotten worse or I am more sensitive to it or last week it was worse because of the winds. Do all hitches allow this to happen? What about the VPP hitches? Truck is a 2500 with good tires. Even a large SUV at speed causes some "pull". I have close to full return weight on the front axle when hitched. Will less pressure on the wt bars make the pull rose or better?
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Maybe too much weight taken off rear axle by the WD? I feel it, more so with the WD than without.
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07-25-2017, 02:54 PM
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#13
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Rich and Kat
2017 30' Classic
Virginia near
, Washington, D.C.
Join Date: May 2016
Posts: 273
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2016 RAM 3500 and ProPride 3P with 2017 Classic 30' - zero sway, zero push/suck and zero wind effect thus far (albeit only about 3K highway miles) ... I needed to dangle a piece of paracord from my visor to remind me that the trailer's there because it's that easy to forget. There might be PP haters out there but I suspect it's because they've never used one. Good luck.
__________________
Rich
2017 Classic 30', ProPride 3P Hitch, 2016 RAM 3500 Laramie Crew Cab 4x4 SRW w/ 6.7L Cummins Turbo Diesel and Retrax Pro MX Tonneau Cover
KB2ZMF Save
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07-26-2017, 11:55 AM
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#14
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Rivet Master 
1977 Argosy Minuet 6.0 Metre
Colorado Springs
, Colorado
Join Date: Dec 2003
Posts: 732
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I tow with an Equal-I-Zer and only notice that effect when being overtaken by a semi-truck car hauler, or when I pass any truck and there is a significant cross wind. Apparently, the aerodynamics on car haulers is horrible.
__________________
__________________
Royce (K0RKK) 146.460 simplex
Web page http://spearfishcreek.net/
AIR# 3913
'77' Minuet 6 Metre, behind a 2005 stock Jeep Rubicon with Equa-L-Zer hitch.
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