1. Camper Jack
  2. Ultra-Fab Products
  3. Stabilizer Jack
  4. Manual Stabilizer
  5. 6000 lbs
  6. 30 Inch Lift
Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs

Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs

Item # UF39-941704
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UF39-941704 - 6000 lbs Ultra-Fab Products Camper Jack
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Stabilize and level your travel or 5th-wheel trailer with this unique device. Designed to span the width of your rig for maximum support, the opposing sides of this stabilizer can be adjusted independently for effective leveling. Call 800-298-8924 to order Ultra-Fab Products camper jack part number UF39-941704 or order online at etrailer.com. Free expert support on all Ultra-Fab Products products. Guaranteed Lowest Price and Fastest Shipping for Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs. Camper Jack reviews from real customers.
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  • Reviews (57)
  • Q & A (21)
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Ultra-Fab Products Camper Jack - UF39-941704

  • Stabilizer Jack
  • Manual Stabilizer
  • 6000 lbs
  • Ultra-Fab Products
  • 30 Inch Lift

Stabilize and level your travel or 5th-wheel trailer with this unique device. Designed to span the width of your rig for maximum support, the opposing sides of this stabilizer can be adjusted independently for effective leveling.


Features:

  • Cross-frame-mount jack stops front-to-back and side-to-side motion of travel or 5th-wheel trailer
    • Provides support across the width of your motor home or trailer
      • Not recommended for use on front of motorized vehicle
    • Stabilizes with wide side support brackets
  • Connecting bracket holds sides of stabilizer together and provides additional support
    • Adjusts to fit the width of your trailer or RV
  • Extra-large footplates help to minimize sinking and tilting
  • Hand crank attaches for manual operation
  • Sturdy steel construction


Specs:

  • Application: trailers and RVs with frames from 48" to 80" wide
  • Lift: 30"
  • Weight capacity: 6,000 lbs
  • 3-Year warranty


39-941704 UltraFab PT II Manual Stabilizer

Installation Details UF39-941704 Installation instructions



Video of Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultra-Fab Trailers and RV Power Twin II Manual Stabilizer Review

Hey guys, it's Randy here at etrailer.com. Now, one of the most common problems when you're out camping, whether it's going to be a travel trailer, a fifth-wheel camper, whatever you've got, is the movement that can be felt inside of the camper when you're either trying to relax and watch a movie and the kids are playing around in the back. You just feel that shifting forward and back. Or maybe some people decided to go to sleep and a few people decided to stay up around the bonfire. It happens just about every camping trip I go on. Then you're trying to sneak into the camper, you're trying to kind of ease your way in.

It just makes it pretty difficult. You don't want to wake up the people that went to bed early. Maybe they're going out on a fishing trip, maybe they're going on a hike. You don't want to disrupt that, but you want to enjoy your time too.Basically what we're looking at today is from Ultra-Fab. This is their Twin Stabilizer system.

This is the manual, so no power required, no wires to run. There's really nothing you have to do except for level out your camper and deploy your stabilizers. Now, when we compare these to regular scissor jacks, these are significantly better. You can look through customer reviews, the different things they say. It's crazy how big of a difference there is.

Basically, generally your stabilizer jacks are going to be mounted on a 45-degree angle or maybe straight out from your camper. You get your standard tool and you go down there and you crank them out. But they don't offer a whole lot of front to back or side to side stability. They just keep that tilting to a minimum.When we use something like this, we're going to attach this portion directly to the frame of our camper. That gives us excellent side to side stability, but you notice they're also angled in.

This triangulation prevents this leg from being able to move forward and back so it gives us much, much more stability. Again, looking through the reviews, customers always say, "I wish I would have known about these sooner." "I wish I would've had these sooner." "They make a world of difference." Even on larger campers like your fifth-wheel campers, people say it takes 90 to 95% of that movement out. Overall, your enjoyment level's going to go up. You're not going to be sitting in there and getting seasick because your kids are fighting in the front. I think it's going to be an excellent solution for you and it's designed to fit a wide variety of applications.We can go all the way down to a 48-inch frame width all all the way out to an 80-inch frame width. All of that adjustment happens right here in the middle. You can see we've got a two-piece design, so we've got one that we'll put on either the driver or passenger side, the other piece goes on the opposite side, and they're tied together right here in the middle with this connection plate. You can see all the holes we have to choose from, also several holes on the actual arms here themselves, and they're designed to slide beside each other. You see this one's mounted here, this one's mounted here, so these are completely independently adjustable. Once we get them where we want it matched up to our frame size, we're never going to have to worry about adjusting this again. It's going to come with all the hardware you need to assemble the stabilizers. The only thing that you'll have to pick is what you want to use to attach it to the frame of your camper.You do have six holes here, half inch or three eighths bolts should go through there without any kind of issues, but also you can see some of the smaller holes that we have here. In those you could use some #14 self-tapping screws. Just make sure you get enough of them in there and you run them through your frame properly so you got the support you need.Now, the stabilizers are going to give you 6,000 pounds of capacity. One thing you want to keep in mind though with a stabilizer system like this, it's not used for leveling your camper. You need to get your camper level. Once it's level, we'll take our tool, we'll bring our stabilizers down until they make contact, just give it another crank or two. That's going to give us good support. It's going to take a little bit of that strain off, but we're certainly not going to use these to level our camper. There's available from Lippert the Ground Control TT or the Ground Control 3.0 system. That's an excellent option if you're looking for leveling and stabilization, but it's certainly a much more expensive system as well.You see, it's pretty easy operation going up or down. Now of course, the way we've got it set up here with it not being mounted to a camper, this is moving up and down, but with this being attached to your frame, that leg comes up and down. The tool is nice and long, so even if you do have a slight overhang here coming out to the side you'll be able to get to it and operate it without any kind of issues.Now, we've got a total of 30 inches of travel. Best way to know if these are going to work for your application, make sure the outside to outside of your frame is somewhere between 48 and 80 and make sure in any of your camping situations that from the bottom of your frame down to the ground it's not more than about 28 inches. That should be perfect. Let's say it was 32 or 33 inches. You could always use a few of the Ultra- Fab stackers underneath each leg. That'll give you the clearance you need and still provide you the list, so that's an option, and I also like how they're independently adjustable. We're going to have a screw in here and a screw in here, so even if we are on an unlevel kind of a camping surface, kind of like what we've simulated here, it'll be about five and a half inches difference from side to side. You can still see that we maintain perfect level and as we lift that up it's going to support our camper and it's going to keep us nice and stable.Now, the overall construction is really nice and heavy duty, probably as heavy duty as I've seen on any of these stabilizer systems, especially a little more heavy than what we see out of the Lippert. We've also got a nice large footplate down here. You can see that's got the clear zinc finish on it. That's going to help prevent any rust or any corrosion or anything like that, and all of this steel, it has a black powder coat finish on it. So again, rust and corrosion shouldn't be an issue. Several customers reviewed this after a year of use and said it still looks great. The finish still holds up really well and they're really happy with it.Now, just to give you an idea of the dimension and how large this footplate really is. You can see it's six and a half inches wide. It's going to be eight inches long. That does an excellent job of dissipating that energy out over a greater area and it's drastically going to reduce the amount of sinkage that we get, especially when we compare these to just a standard scissor jet.Now guys, I really feel like this is going to improve your camping situation. I've installed these on several different campers and I really like the way they work and the felt effect that you get is pretty phenomenal. I think you're really going to enjoy it. Now, you might say, "I don't want to crank on them." You've got no need in the world for that, I want to hit some buttons. You can go with the other option from Ultra-Fab. It already has the motors installed and you're going to have your switches. The thing I like about this one, we don't have to run any wires. We don't have to worry about if our battery's dead or something like that. We get out there and we crank them up, but I do understand sometimes you want a little bit more convenience, you want to be a little bit more easy, just hit a couple buttons, get everything taken care of.


Customer Reviews

Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs - UF39-941704

Average Customer Rating:  4.6 out of 5 stars   (57 Customer Reviews)

Stabilize and level your travel or 5th-wheel trailer with this unique device. Designed to span the width of your rig for maximum support, the opposing sides of this stabilizer can be adjusted independently for effective leveling.

- UF39-941704
by:

Product was delivered on time, no problem with assembly I do wish the instructions where larger but went on line and printed it off, well built no problem on install good product 310907



- UF39-941704
by:

Very happy with the quality of this stabilizer jack!! I currently only have the jack installed on one end of our toy hauler and you can feel the difference in how stable the camper is on one end compared to the other end that still has the scissor type jacks. I will definitely be purchasing a second one!! 280015


Comments
I did end up purchasing a second set of these stabilizer jacks a few weeks later and Im very happy I did!!
Brian s - 08/05/2017

26854

- UF39-941704
by:

It is awesome! It does not come with hardware to mount to the frame and I had to fabricate a bit to make it fit around a support beam. 680797



- UF39-941704
by:

This product is awesome and has made a substantial difference in the stability of our camper! We have a 32' travel trailer and the factory jacks are sad and could feel every movement of the kids. This has taken away 90% of the movement that we were having before. If you are not handy plan on having someone install this for you. It's not hard to do but if you don't have some tools for the job you will struggle. It took about 4 hours total to install. 529220



- UF39-941707
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


The product itself is a good product but the packaging for shipment is very bad. I received mine and the box was badly torn apart and tapped back together. I was missing multiple pieces and had to wait until the replacement pieces arrived. Customer service was very helpful with resolving this problem within minutes. 119770



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


On time. Installed easily! One of the bolts that attach the motor did twist off before it was tight. All bolts turned hard. 371795



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


The Jacks are considerably more durable well built compared to the Lippert models. The lifting power is real and once on the ground the prevent movement of the RV by orders of magnitude over the other style jacks. I only have one in the center of a long trailer and it has stopped the bouncing and side to side swaying of the trailer. Just stepping onto the stairs to get in its rock solid. Also when all the legs are deployed the doors close way better than they ever had with just the Lippert jacks on the front and back. Definitely recommend to anyone thinking about a better jack than what's provided oem. 307523



- UF39-941707
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Your going to love this product. I was able to fit on to a 1987 Avion travel trailer I renovated for my sister (spectacular renovation). It made the camper rock solid. You can't feel anybody walking around, no high wind movement. It felt like we set it on a concrete foundation. It is a well designed product I will use in the future if I renovate another classic beauty, even my own every day travel trailer. Great product. 614891



- UF39-941707
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Scary at first, but following directions, it bolted right onto the frame, used a floor jack to hold it in place while attaching. Wiring was uncomplicated, except for figuring out where to route the wires. works fine, I am a happy camper! 340760


Comments
still works great.
Glenn A - 02/10/2018

34539

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


I love this product, I wish I'd bought and installed it sooner. It took some installing, you might need to solicit help from a friend unless you're stubborn like me, in which case it's doable solo. The wiring is the most challenging, I found adding a dedicated circuit directly from my battery via a heavy duty fuse was the way to go. The function and performance is flawless and makes leveling at the campground or storage location child's play. 655786



- UF39-941707
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


I got the jack for three reasons. My original jack was intermittent, it was bent and it did not level the trailer because it had only one motor. The new jack works great and it can level the trailer because it has two motors and the power required. It was not the easiest to install because of the increased size and it will not level the trailer if it is off more that 2 inches or so side to side. In spite of these drawbacks and the fact it added weight to the rear of the trailer I am very happy with the new jack. 372285


Comments
Good. Only issue I have is it is slower than my old jack
Richard - 04/25/2018

37656

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


I Love these Electric Stabilizers, They work Great. They Make setting up and taking down, so much easier. The Duel Motors have plenty of Power and give you complete control of leveling both Sides Independently. The only Negative is the Glass fuse style Fuse Holders that come with them, They work intermittently at Best. Replace with the Blade Style Fuse Holders. Much Better. 607721



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


On a nice sunny day I pulled out my new Power twin Stabilizer set. The Ultra-Fab went together as the direction read. The sizing to the trailer frame was a bit of taking a part to slide together as it is a very tight fit. I was replacing a cheaper set put on by the trailer MFG. adding spacer to fill in for the longer and better frame work of the Ultra- fab Stabilizer. The power units went on without any fuss. I am very pleased with my handy work the ease of installation. etrailer was great support when I thought a part was missing in shipping. All parts were in the boxes when I open them all up. Thank you etrailer 189206



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


The Ultra-Fab Power Twin II is a very robust stabilizer and works very well with the two heavy duty twin motor Ultra-Fab landing gear jacks I had previously installed on the front of our 32' fifth wheel. I like this product for it's strength and simplicity. It allows leveling and stabilizing without hand cranking or getting down on knees with a cordless drill and socket. I performed the complete assembly and install myself which replaced the two scissor jacks that came on the fifth wheel. This unit makes for a very stable platform. 291096



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Best investment we've made for our 5th wheel--eliminated a lot of the shaking and makes our camp stays so much more enjoyable. I wish we had done it sooner. 499148



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Product arrived very fast and looks very good I have not installed it yet Great company to deal with 298117



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


I want to give this product 5 stars as they are a very nice set of stabilizer jacks that are very heavy duty but I'd have to say that the quality control from Ultra Fab is not great. The connecting bracket, part # 39-841642 on both sets was very poorly fabricated. On one set the holes were not drilled in a straight line and therefor did not line up with the holes on the jacks forcing me to drill new holes and on the other set the bracket was actually a whole quarter of an inch narrower at one end than the other and the jacks did not even fit into the bracket. Due to time constraints and not being able to be down more than a day after cutting off the old jacks I was forced to cut the bracket and weld it back together straight so that it was usable. Costing me an extra 2 hours of time and frustration. Nice jacks otherwise but I advise to assemble them completely and make sure the parts line up before removing your old parts. 662077



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Ultra- Fab did a great job with this product. Extra heavy duty and a easy install. Very good quality mounting hardware included. Nothing else needed for installation. This system makes setting up at the camp site a breeze. If you are looking for a stabilizer leveler system your search is over. etrailer.com could not have done a better job. A great web site and fast shipping. Keep up the good work. 173391



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Quick follow up after a year or so of use on the Twill ll Electric Stabilizers. I have one set on rear and one set on front of my 28' Coach. I have found that it is better to use a solid piece of 12"x12" hard wood for the feet to rest on while setting up the camper at site. the plastic ones seem to push in after a bit and I have to re-adjust. As far as the Jacks are concerned, they perform as they should, making the coach very solid with little to no movement. I have had 0 issue's with them since I installed. Not a super easy task by yourself in your driveway but not that hard either. just take your time, run heavy gauge wire for power so no drop in amp. all good! thanks, 445259



- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Very please with my purchase, it was simple to install and has solved the bounce issue in my 36' travel trailer. 381969


Comments
Working perfectly, very please with the stabilizers and the finish, they still look new with no rust
Jim P - 05/18/2018

38633

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Was subpar can’t lift trailer doesn’t do a very good job at stability would not purchase if I knew what they were like 598066


Comments
The ultra fab stabilizer part # UF39-941705 is not designed to lift. If you are looking for a stabilization system that can also lift the trailer I recommend lippert Travel Trailer Leveling System part # LC672136
Electric Ground Control TT Automatic 5-Point Travel Trailer Leveling System - 10,000 lbs
$2,599.81
. 5 motorized jacks will lift the trailer and level it with a fully electric system. The system can be operated by the included control panel or with your smart device. The best thing about the lippert leveling system is that it includes hitch height memory for automatic leveling when you are ready to hook up again.
-- Heather A - 01/17/2019

48647

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Very well built system! My favorite feature is the independent toggles for each side, thus adjusting the angles to your needs. 408281



- UF39-941707
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


Installation was easy, need a helper just to make it safer. CSR people are great very helpful!! Works as promoted and I have recommended this product to other campers. 410247


Comments
Well after 1 year of use the Jacks are still doing very well we have gone on at least a dozen trips that they have been utilized. I am very glad to have purchase them, the installation was very easy great videos!! Best Regards P.S I have recommended to other campers and have even assisted on installing them.
James F - 07/26/2018

41519

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


the power rear jacks work great. 478968


Comments
great product
RON W - 03/10/2019

50347

- UF39-941705
by:

Review from a similar Ultra-Fab Products Power Twin II in Camper Jack


I finished the assembly and install of the power twin II stabilizer and have included pictures of the install. This is a good quality unit and I am very happy with how it works. Bob 291792


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Info for this part was:

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Video Edited:
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Installed by:
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