RV.Net Open Roads Forum: Towing: WD hitches and unibody

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 Help and Support  |  Contact

Search:   Advanced Search

Search only in Towing

Open Roads Forum  >  Towing

 > WD hitches and unibody

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Sponsored By:
gmw photos

midwest

Senior Member

Joined: 12/11/2011

View Profile



Good Sam RV Club Member

Offline
Posted: 02/13/12 07:08am Link  |  Print  |  Notify Moderator

How many folks use weight distribution hitches with their unibody tow vehicle ? Anybody have any specific experience that was bad using this combo ?

george

carringb

Corvallis, OR

Senior Member

Joined: 07/28/2003

View Profile


Online
Posted: 02/13/12 07:55am Link  |  Print  |  Notify Moderator

Ford requires using weight distribution on their Unibody vehicles (Flex, Explorer) to achieve the full tow rating.


Bryan

2000 Ford E350 DRW Wagon, V10 - 385,000 miles
2014 CreekSide 31KQBS (QuadSlide bunkhouse)


mkirsch

Rochester, NY

Senior Member

Joined: 04/09/2004

View Profile



Posted: 02/13/12 08:58am Link  |  Print  |  Notify Moderator

If you stay within the manufacturer's ratings, there is no reason to worry about it.


2002 Chevy 3500 DRW/8.1/Allison & 2000 Palomino B1500 popup TC

-Yes, I haul a popup with a dually. No, I don't think I need a dually to haul a popup.

gijoecam

Midwest

Senior Member

Joined: 07/22/2011

View Profile



Good Sam RV Club Member

Offline
Posted: 02/13/12 08:44am Link  |  Print  |  Notify Moderator

Provided the vehicle was designed and tested with weight distribution in mind, I wouldn't anticipate any issues. If, however, you're looking at adding a WDH to a vehicle not rated for one, I would not expect it to be long for this world.

red31

Bryan

Senior Member

Joined: 08/04/2008

View Profile


Online
Posted: 02/13/12 10:26am Link  |  Print  |  Notify Moderator

One minivan maker (dodge) required 'em!
A load equalizing hitch is recommended for loaded trailer weights above 1,000 lbs (454 kg) and required for weights above 2,000 lbs (907 kg). (2004)

Later manuals suggested
"Trailer sway control and a weight distributing (load equalizing) hitch are recommended for heavier tongue weights (TW), and may be required depending on vehicle and trailer configuration/loading to comply with gross axle weight rating (GAWR) requirements.

skipnchar

Topeka or somewhere else

Senior Member

Joined: 12/17/2003

View Profile



Posted: 02/13/12 09:41am Link  |  Print  |  Notify Moderator

I would check with the vehicle manufacturer before installing one. SOME unibody vehicles will not stand the forces applied by a WD system and others limit the amount of pressure they can handle. They SHOULD be able to tell you the details about using them.


2011 F-150 HD Ecoboost 3.5 V6. 2550 payload, 17,100 GCVWR -
2004 F-150 HD (Traded after 80,000 towing miles)
2007 Rockwood 8314SS 34' travel trailer

US Govt survey shows three out of four people make up 75% of the total population


Slowmover

Corpus Christi, Texas

Senior Member

Joined: 11/14/2003

View Profile


Offline
Posted: 02/21/12 09:05pm Link  |  Print  |  Notify Moderator

gmw photos wrote:

How many folks use weight distribution hitches with their unibody tow vehicle ? Anybody have any specific experience that was bad using this combo ?

george


Seeing as how Dodge and Plymouth sedans & wagons were the tow vehicle of choice for much of the 1960's and '70's -- and unibodies, every one of them -- the history of WDH and unibody has depth & breadth. Done right, unibody is stronger than body-on-frame.

It would probably help to be specific about the vehicle being considered. Here, or elsewhere, someone already has experience with it.

.


1990 35' SILVER STREAK Sterling, 9k GVWR
2004 DODGE RAM 2WD 305/555 ISB, QC SRW LB NV-5600, 9k GVWR
Hensley Arrow; 15-cpm solo, 25-cpm towing

BenK

SF BayArea

Senior Member

Joined: 04/18/2002

View Profile



Posted: 02/21/12 09:16pm Link  |  Print  |  Notify Moderator

I'm not a fan of any WD hitch system on monocoque (unibody) vehicles. Yes there
are a couple (same, but just different badging...VW and Porsche)

Here is an old thread on the topic with some images of various labels and glove
box manuals

Towing a slingshot GT21FD with a Honda mini van

Bore down far enough and you will find reference to a Honda Pilot, which is
derived from a Honda Odyssey mini van

Here is the link to the manual series : Honda manual towing section

Where it specifically states WD not recommended


They only mention handling, but I say the real reason is that the monocoque
can't transmit the WD forces through the spot welded together body sections.

Bought my 2000 Odyssey used and it came with a U-Haul receiver (1.25
square pin box)

Even with just my bicycle rack, it flexes much more than I'm comfortable
with and consider that approx 150-200 lbs more than any tongue weight
I'd like to tow


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...

BenK

SF BayArea

Senior Member

Joined: 04/18/2002

View Profile



Posted: 02/21/12 09:28pm Link  |  Print  |  Notify Moderator

To be fair, just went and checked my Odyssey's glove box manual that I've captured
on my Internet photo account.

It does say okay to use a WD hitch, but elsewhere it limits the weight of the
max trailer factored by the passenger loading

Here they are:


MTWR factored by passenger loading


GCWR



WD hitch


















U-Haul receiver label


whisperide

Golden Spike area

Senior Member

Joined: 09/27/2011

View Profile


Offline
Posted: 02/22/12 05:46pm Link  |  Print  |  Notify Moderator

gijoecam wrote:

Provided the vehicle was designed and tested with weight distribution in mind, I wouldn't anticipate any issues. If, however, you're looking at adding a WDH to a vehicle not rated for one, I would not expect it to be long for this world.


Kinda what I thought. I'm doing a custom hitch to spread the stresses out more, along more of the rear sub-frame rails. I'm not going WD, however. Instead, I'm upgrading the rear suspension. But I'm playing with a RWD unit-body car that was built with a solid rear axle. And even so, I'm adding a full roll-cage ( custom-revised ) with my sub-frame connectors to keep the car from becoming a giant metal banana.
How far you want to go is up to you, but as Stephen Tyler said; anything worth doing is worth overdoing.


'06 GMC C2500HD RCLB gasser 4.10:1, 4L80E, custom camshaft
'84 Trans Am 6.2 diesel, 700R-4, custom Class-3 receiver
'69 F350 dually. GM 6.2 diesel, turbo, 700R-4, NP208 all pending.

This Topic Is Closed  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Towing

 > WD hitches and unibody
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:

© 2014 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS