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Old 06-05-2013, 10:41 PM   #1
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Do you use additional scissor jacks?

So our trailers has electric stabilizers, 2 on front and 2 on the rear. Each with about a square 6 inches or so pad.

However since they are only stabilizers it still has some small amount of
"bounce" to the trailer. Do others use some scissor jacks to help additional
stabilizers?

Our trailer is about 28 ft trailer with a 18 ft super slide out.
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Old 06-06-2013, 12:01 AM   #2
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You are going to get bounce because of the leaf springs. I have 2 scissor jacks behind my duals and try to just get some of it out. Unless you have automatic jacks, like a MH, you will have bounce.
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Old 06-06-2013, 12:31 AM   #3
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Place some cheap screw jacks either in front or the rear of the tires. Just screw the jack up to touch the frame and maybe one more full turn. That will act as a solid connection to the ground. It will take all the bounce out.
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Old 06-06-2013, 03:58 AM   #4
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We install these at our dealership. They work like a charm.. well worth the investment:
SteadyFast: 5th Wheel and RV Travel Trailer Stabilizer System
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Old 06-06-2013, 10:24 AM   #5
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You could try the BAL locking stabilizers: BAL - Innovative Products for the RV Industry

Just for fun, you could try a temporary bottle, floor or screw jack at each of the 4 corners and see if that reduces the vertical movement much. I have a feeling that the elec. stab. jacks have more flex in them compared to the manual type. If this makes a big difference, I don't think the locking arm stabilizers will help much.

Some people use a bottle jack on each side at or near the axles. With regular stab. jacks at the front and rear of a trailer, there will be vertical movement that will be more noticeable the longer a trailer is, as already stated due to the springs, and also flex in the tire sidewalls. A bottle jack may not be that easy. The typical small bottle jack isn't tall enough to reach the frame and you'll need some thick wood blocks. You want to jack the frame (only 'till snug) and not the axles or spring hangers. Axles are often mounted closer to the rear to create some tongue weight so it should work to place the bottle jack just ahead of the axles. One downside to bottle jacks is the weight and bulk to carry around. Some trailers are on the edge of being overloaded (like us) due to overinflated CCCs and you may not want more weight.

We've got a new 29' TT also with elec. stab. jacks. We find the bounce is quite annoying. DW (an accountant) hates spending money but maybe I will get the BAL locking arm stabilizers for her as an Xmas gift this year. We sure notice the bounce a LOT more than in our old 20' TT. The frames in trailers are made with such thin metal, the beams flex easily. It's awful when you spend tens of thousands on a TT and get such annoying bounce...... And to have to resort to bottle jacks when you spent extra on those fancy elec. jacks?.....
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Old 06-06-2013, 10:42 AM   #6
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I have a 41' fifth wheel. I use a 2 ton bottle jack between the axles. I put pressure on the spring equalizer, this takes all of the bounce out. The down side of bottle jacks is that they will bleed down. I just leave the handle in and give it a stroke when needed.
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Old 06-07-2013, 07:21 AM   #7
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I installed a 7500lbs capacity scissor jack on each side of the 39 ft trailer just behind the wheels. I find it much more effective then the stabilizers at the back. And on a light framed unit it would surely be more effective.
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Old 06-10-2013, 12:10 AM   #8
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after some research I am considering the x-chicks for each set of tires. Anyone used these?
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Old 06-10-2013, 11:01 AM   #9
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Quote:
Originally Posted by gazingm42 View Post
after some research I am considering the x-chicks for each set of tires. Anyone used these?
I use them and they do help, however i still get some bounce. I have installed cinder blocks under the jacks so the jacks don't go down to far.
That helped too but still bounce when camper is full. I am going to try a set of camco screw type jacks in front of tires and see if that helps.
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Old 06-11-2013, 12:04 PM   #10
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It seemed really noticeable this last time out - maybe we got heavier from last year

Another thread I was on had suggested the Rock No More Rock No More - Products

but I think I am going to try Cumminsfans suggestion first since my TT is so short. Harbor Freight here I come.
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Old 07-01-2013, 08:04 PM   #11
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I just purchased rock no more- I'll post how it works after we try it out
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Old 07-02-2013, 02:12 AM   #12
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I used the x chock this last week. I must say I was very. Pleased with the results.
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Old 07-02-2013, 09:41 PM   #13
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X-chocks do not control bounce. Bounce is a vertical motion like when you jump up and down in the trailer.

We have a fairly new trailer with electric stab. jacks and have a lot of uncomfortable bounce and movement. We have X-chocks. Our trailer is 29' long and I suspected a lot of the bounce is due to vertical movement in the center of the trailer due to the length of the frame. I just added a couple of bottle jacks yesterday at our cg ahead of the wheels and it does significantly reduce bounce in the center of the trailer.

We still have a lot of bounce though and I happened to notice the rear of the trailer rocking when DW walked in. Upon further investigation, the design of the Lippert elec. stab. jacks is poor and they are not able to adequately minimize bounce at the outer portion of a trailer.

The Lippert jacks, as I assume they all do, "unwind" and pivot about the center of the trailer. If you go watch your stab jacks while someone walks in, you will see that the trailer actually rotates back and forth somewhat about the centerline of the trailer. One side of the trailer goes down while the other goes up. These jacks are simply poorly designed and built. You will be much better off with standard screw jacks or you could add angle bracing like the BAL locking arm stabilizers. I may try and post a video clip of what happens with ours.

I was considering adding a third elec. stab. jack ahead of the wheels, but not now. Perhaps some of these jacks are better than others. I am really disappointed in our elec.stab. jacks. We paid a lot of money for them too.
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