Good Sam Club Open Roads Forum: Travel Trailers: Tow Vehicle Rear End Sag
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 > Tow Vehicle Rear End Sag

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TomG2

Central Illinois

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Posted: 11/23/20 06:15am Link  |  Quote  |  Print  |  Notify Moderator

To the OP: Obviously, you have asked a big question and are getting lots of opinions. Give them all a big assist by posting ACTUAL weights, ratings, and measurements. Without them, it is just guessing and can actually be dangerous.

kellem

Shenandoah valley,VA

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Posted: 11/23/20 06:21am Link  |  Quote  |  Print  |  Notify Moderator

Yes need some more info to give proper advice.
You'll likely have to adjust the hitch and perhaps upgrade the trunnion bars depending on WDH.

The goal is to have TV and trailer as level as possible and a properly adjusted WDH can accomplish this.

TomG2

Central Illinois

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Posted: 11/23/20 06:27am Link  |  Quote  |  Print  |  Notify Moderator

I have owned and towed with a dozen late model pickups and none said that everything had to be level. The last couple said to restore 50% of front axle reduction. They also gave ratings to observe.

ppine

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Posted: 11/23/20 10:32am Link  |  Quote  |  Print  |  Notify Moderator

First you need to find a hitch ball that sits at the right height so your trailer is more level. More drop is needed.

Then you need to properly adjust your weight distributing hitch.
Get some help if you are still having problems.

Grit dog

Black Diamond, WA

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Posted: 11/23/20 10:32am Link  |  Quote  |  Print  |  Notify Moderator

TomG2 wrote:

To the OP: Obviously, you have asked a big question and are getting lots of opinions. Give them all a big assist by posting ACTUAL weights, ratings, and measurements. Without them, it is just guessing and can actually be dangerous.


Or maybe it’s better that the OP doesn’t. I’d bet $20 that if he does, the rvnet weight cops will just nuke the thread.


"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.

Boomerweps

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Posted: 11/23/20 12:25pm Link  |  Quote  |  Print  |  Notify Moderator

rexlion wrote:

4evertravel wrote:

We recently upgraded our tow vehicle, so now the hitch and ball sit much higher than the coupler on the tongue of the trailer (when its level). After hooking it up and putting all the trailer weight on the tow vehicle, and not the jack, the rear end sags. We have a weight distribution hitch, but that doesn't seem to help. What could cause this, and how do we fix it?
Thanks-
First off, you want to change your WDHitch configuration so its ball sits at the proper level (when unhooked), same height as the trailer tongue when level.

For MY hitch, the top of the hitch ball is supposed to be one inch above the inside top of the coupler when the trailer is level and no load on/in the truck.


2019 Wolf Pup 16 BHS Limited, axle flipped
2019 F150 4x4 SCrew SB STX 5.0 3.55 factory tow package, 7000#GVWR, 1990 CC Tow mirrors, TBC


Lynnmor

Red Lion

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Posted: 11/23/20 02:05pm Link  |  Quote  |  Print  |  Notify Moderator

Boomerweps wrote:


For MY hitch, the top of the hitch ball is supposed to be one inch above the inside top of the coupler when the trailer is level and no load on/in the truck.


That is a starting point, your truck might sag considerably or hardly at all. The OP needs to set up his hitch to return the front to the correct level, then if the rear is way too low, only more spring will help. Air bags are one kind of spring.





kellem

Shenandoah valley,VA

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Posted: 11/23/20 04:44pm Link  |  Quote  |  Print  |  Notify Moderator

Nope, while the spring bars on a formidable WDH returns weight to the front, it also mitigates rear sag.....airbags shouldn't be a necessity but rather heavier spring/trunnion bars.

Lynnmor

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Posted: 11/23/20 06:58pm Link  |  Quote  |  Print  |  Notify Moderator

kellem wrote:

Nope, while the spring bars on a formidable WDH returns weight to the front, it also mitigates rear sag.....airbags shouldn't be a necessity but rather heavier spring/trunnion bars.


So you just keep adding weight distribution till the rear comes up to where it started? Yeah, Right.

kellem

Shenandoah valley,VA

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Posted: 11/23/20 08:17pm Link  |  Quote  |  Print  |  Notify Moderator

Lynnmor wrote:

kellem wrote:

Nope, while the spring bars on a formidable WDH returns weight to the front, it also mitigates rear sag.....airbags shouldn't be a necessity but rather heavier spring/trunnion bars.


So you just keep adding weight distribution till the rear comes up to where it started? Yeah, Right.


Yeah, it's called weight distribution.
4 trailers and each rode level and each application absorbed the tounge weight perfectly.
What's the purpose of investing in a WDH that sags?

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