Good Sam Club Open Roads Forum: Fifth-Wheels: Question about unit stabilization
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 > Question about unit stabilization

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SUMRX4

VA

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Posted: 11/04/21 10:06pm Link  |  Quote  |  Print  |  Notify Moderator

Just purchased my first 5th wheel. 42' KZ front living. Well I had been curious how sturdy it would be with those hydraulic jacks. After all it's just one point straight down with no lateral support. I didn't notice that big of an issue with it shaking but wife brought it up. I know I can add blocks under the jacks and the shorter they end up the more support they would have but I'm wondering what else I can do? I realize a 42' camper on a few stabilizers isn't going to be rock solid but just curious if there is any suggestions out there. I have never owned a set but would the scissor type locks that fit between the tires help? I have heard they help on smaller TTs but I'm not sure on this application.

valhalla360

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Posted: 11/05/21 01:35am Link  |  Quote  |  Print  |  Notify Moderator

Do you have "strong arms" or similar?

Blocks will help a little but not drastically. You need something to stop fore & aft and side to side movement.

Also, at 40ft, do you have stabilizers near the middle? The axles are designed to flex as you go down the road, so they provide marginal ability to stop the middle from flexing as people walk around. Most big 5ers have the landing gear plus 4 stabilizers.


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SUMRX4

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Posted: 11/05/21 07:24am Link  |  Quote  |  Print  |  Notify Moderator

Yes I have landing gear and 4 jacks. Two each in front and behind the axles. That's all it currently has and I'm looking for some extra stabilization.
What are "strong arms"?

Martyn

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Posted: 11/05/21 07:56am Link  |  Quote  |  Print  |  Notify Moderator

SUMRX4 wrote:

Yes I have landing gear and 4 jacks. Two each in front and behind the axles. That's all it currently has and I'm looking for some extra stabilization.
What are "strong arms"?


These:
J T Strongarms

Had them on my last 5th wheel. Made it rock solid.


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valhalla360

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Posted: 11/05/21 07:57am Link  |  Quote  |  Print  |  Notify Moderator

SUMRX4 wrote:

Yes I have landing gear and 4 jacks. Two each in front and behind the axles. That's all it currently has and I'm looking for some extra stabilization.
What are "strong arms"?


Google: JT strong arms.

There are other brands that do the same thing but they form a triangular braces, so they resist the side to side and fore & aft movement.

You can do a tripod on the kingpin and it helps but not nearly as much.

schlep1967

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Posted: 11/05/21 09:44am Link  |  Quote  |  Print  |  Notify Moderator

If you are getting movement it is likely because there is still support being provided by the suspension. Lower the jacks a little more so they are holding more of the weight.


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lostdog

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Posted: 11/05/21 10:22am Link  |  Quote  |  Print  |  Notify Moderator

When we are going to be set for awhile I put down all 6 jacks really hard, to the point that the wheels are just touching the ground. These hydraulic jacks are very strong, My four rear jacks are 4000lb capable each and the front 2 are rated at 6000lb. That's a total of 28000lbs of capability. When we are set up that way the only time we may feel some motion when in our rig is when the washer is spinning. ah but I'm sure somebody will chime in and say you can't put that much weight on those jacks.


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stickdog

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Posted: 11/05/21 10:35am Link  |  Quote  |  Print  |  Notify Moderator

Don't take the wife out on a boat.


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SUMRX4

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Posted: 11/05/21 11:03am Link  |  Quote  |  Print  |  Notify Moderator

We are headed out again next weekend. After the auto level sequence I will run each down a tad more and see it that helps.
I looked at the strong arms but Didn't see any with hardware to mount to the round hydraulic jacks. Just the square electric jacks. Am I missing something?

Michelle.S

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Posted: 11/05/21 11:16am Link  |  Quote  |  Print  |  Notify Moderator

Brackets to mount to the round jack pads.


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