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Open Roads Forum  >  Travel Trailers

 > Extending Scissor Jacks too far?

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Lantley

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Posted: 10/28/11 06:13am Link  |  Print  |  Notify Moderator

I agree with the general premise. But I don't think it is real critical either way. Fully are partially extended, the trailer is going to be more stable vs. no stabilizers. The difference in stability between full and partial extension is negligible.
It is more important that stabilizer be snug and tight to eliminate any movement. The forces that induce bounce will transfer through the stabilizers either way.


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Ole Man Dan

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Posted: 10/28/11 06:30am Link  |  Print  |  Notify Moderator

I cut 6X6 blocks to go under all stabilizers and under the front jack.
It's less work to raise and lower, and more stable to boot.
I also bought one of the screw in step stabilizers... All of this plus the use of X-Chocks has my trailer pretty much sway free. I don't get bounce when you walk inside...
(I carry two extra 6X6s in case I get a site that's low on one end)

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Posted: 10/28/11 08:30am Link  |  Print  |  Notify Moderator

skipnchar wrote:

I don't think it makes any difference in stability but sure does make for less cranking to put blocks under them. If they were LIFTING anything it would make a difference but all they're supposed to so is stop the bounce.


I'm with Skip!!! I don't even use the darn things unless DW is along. And when I do use them I use a portable drill on them!!! Against the advice on the stickers!!!!!


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five'er

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Posted: 10/28/11 09:25am Link  |  Print  |  Notify Moderator

Yeah, the Scissor type are pretty bad if not almost useless on preventing side to side movement because they are full of joints that can move. They are really designed to stop the bounce as suggested. If you want to help the side to side and the bounce look at the type that are a one piece arm, they are a bit better. Al that being said.. I DO put blocks under mine as I do beleive it DOES help a bit to keep them as close to the frame as possible.


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Sean Boburk

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Posted: 10/28/11 02:03pm Link  |  Print  |  Notify Moderator

I would say...if you can find a reason and the cash, check into these


We only have it on one end of our camper, but I feel even just the one helps with the side to side stabilization of the camper. The X-chock heloed a lot with the front to back movement.

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five'er

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Posted: 10/28/11 03:37pm Link  |  Print  |  Notify Moderator

Sean Boburk wrote:

I would say...if you can find a reason and the cash, check into these


We only have it on one end of our camper, but I feel even just the one helps with the side to side stabilization of the camper. The X-chock heloed a lot with the front to back movement.

Sean


Yep.. Those are the ones I was taking about. I put them in my old fiver, only one problem I found was they don't have the same reach so if you're rear is really high and you have them on the back you need a lot of blocking which takes away from the stability I think. These do better the less they are lowered. So for a fiver which only really had rear stab jacks I'd think twice. Great for a tt though.

popeye59

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Posted: 10/28/11 03:53pm Link  |  Print  |  Notify Moderator

Those and the two braces I put on, on opposite corners.



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Posted: 10/28/11 04:32pm Link  |  Print  |  Notify Moderator

Well, since I'm in a Camper on wheels, I don't mind a little jiggle. I have not used the stabilizers in years at all.


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Sean Boburk

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Posted: 10/28/11 06:13pm Link  |  Print  |  Notify Moderator

five'er wrote:

Yep.. Those are the ones I was taking about. I put them in my old fiver, only one problem I found was they don't have the same reach so if you're rear is really high and you have them on the back you need a lot of blocking which takes away from the stability I think. These do better the less they are lowered. So for a fiver which only really had rear stab jacks I'd think twice. Great for a tt though.
Those in the pic are BAL brand (I dont know how many others are out there). If I recall correctly, they had three different sizes. My TT is 18 inches frame to ground. The ones I installed were made for that height, and extended to 24 inches. I guess that is not a whole lot of leeway if you are on a very uneven camping ground. Anyhow...my point...I don't know if one of the longer ones would be long enough for a fiver. Still might be worth checking into if a person could find a reason to change them out. Mine were bent in a storm that moved the tongue of my TT over about 2 feet. So they had to be replaced with something.

Hind sight being 20/20. It might have been better to have them on the rear of our TT, because that is where much of the movement is generated (bunk room with kids in it). Even with them installed on just the front, the TT still feels more stable. When we can get another $150 of expendible cash together, I think I might change out the rear ones, and then look at the possibility of installing the old rear ones in front of my wheels, to remove any frame bounce that is there.

Sean

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