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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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Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs Electric Stabilizer UF39-941704
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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 jacks 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 Jacks reviews from real customers.
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Ultra-Fab Products Camper Jacks - UF39-941704

  • Stabilizer Jack
  • Electric 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"
  • Bracket width: 36"
  • 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   (59 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:

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



- UF39-941704
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

- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


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



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


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 Power Twin II in Camper Jacks


Very pleased. Not that hard to install. These replace the weak stabilizers that came with the trailer. You'll need a jack and an electrical kit to complete the install. 433546


Comments
Still working just fine, Ive suggested it to anyone who askes about it.
RRR - 09/18/2018

43732

- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


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 Power Twin II in Camper Jacks


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 Power Twin II in Camper Jacks


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



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


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
$2,672.92
. 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 Power Twin II in Camper Jacks


916179



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


It took a while before I installed it, and it was a pretty involved effort putting it on our 5th wheel but after it was installed it worked as I hoped. Actually my wife wanted it more because she despised it when I used the chordless impact wrench because of the noise it made in a quiet campground. Now it is simple, quiet and I dont use blocks under the jacks so it is a lot quicker to set up and what makes it really nice is my bride can take on that set up/take down task. I didnt give an excellent review because of the effort to install (but truthfully there were no shortcuts to get the equipment installed other than to have paid for someone to do it for me) They also recommended putting the switches in an enclosed box on the rig. That isn't very feasible so I mounted mine on the side of the rig above the jack so you can watch what's happening. I also put exposed weatherproof switch covers on to keep them from getting brushed off or tampered with while traveling. All in all worth the money and effort. 854594



- UF39-941707
by:

Review from a similar Power Twin II in Camper Jacks


On my 5 whl the landing gears froze up and would not turn either way. I ordered LC179013 and installed myself. That was s good job for an old 70Yrs fat man to do.. I got them installed and wired up and they work like a champ. That has been over a year ago and have been used alot. 745104



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


Good product! 3 day delivery, no missing or damaged components. 2 hour install...an extra pair of hands is very helpful. I completely assembled the device, left all fasteners a litle loose, slid underneath my 36' trailer. Set width beforehand plus one half inch using jack legs to raise against trailer frame then adjusted finish width. Sure makes life easy for someone with physical limitations. 713754



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


Ultra-Fab Products Power Twin II Camper Jack Good product, however we bought it for our class c RV, it didn’t fit right but we were able figure a way to get it to work. 693112



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


Having newer higher travel trailer the scissor jacks that came with the unit couldn’t reach the ground and blocking had to be carried. The electric stabilizers do come in different length legs depending on what you need. They work great, mounting them to the frame was a little work. I was able to do the work myself. Deciding where to mount your switches and how to run wire to them takes some planning. The jacks themselves are very sturdy when down and can lift the camper (not recommended). 673841



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


After installation the stability or my toy hauler was increased X3. The installation was relatively easy and all that was needed was common tools and a floor jack. Wiring was covered by simple easy to follow instruction. Some shrink wrap and a solder gun make permanent water resistant connections which I recommend. 653355



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


I received the leveller/stabilizer as expected. The instructions for installation were clear and I found it easy to assemble and install them. Wiring was a bit tricky because of my trailer design, but worked out fine in the end. I have just returned from a three week trip and can recommend this product whole heartedly. One thought I have had is that a manual version might be satisfactory, using a drill to drive the gears until they engage with the ground, and then using a manual crank after that. The motors are a bit slow to drop the feet to the ground because they also have the necessary torque and gear ratios to lift the corner of the trailer. All in all, a great product. 647307


Comments
I continued to use the trailer until parking it for the winter in the fall of 2019. The stabilizers continued to work well. I have nothing further to add, unfortunately, until this pandemic is done.
Jeff C - 05/28/2020

77852

- UF39-941707
by:

Review from a similar Power Twin II in Camper Jacks


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


Comments
Excellent product
Jonathan - 03/30/2020

72004

- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


The stabilizer was a great purchase. It has lived up to it’s description as advertised. I did have to make some alterations. Because I have a slide out carrying rack on my 2010 Cougar 5th wheel, I had to weld the stabilizer to the frame so I could use the slide out rack. It works great. I highly recommend the product. 613986


Comments
Great product. The levelers worked as advertised and brought a very noticeable stability to my 5th wheel that was not present with the original equipment that the trailer was equipped with...scissor jacks.
Robert - 03/26/2020

71769

- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


The Jack's came really boxed up well. They came in 3 boxes. Assembly was really not a difficult task. I built them in my driveway and slid the right under the camper. I do recommend that you get a real good measurement of your trailer frame (outside to outside) before putting under trailer. That way you not crawling under your trailer 10 times to move adjusting bolts TRUST ME ON THIS ONE! These Jack's are really heavy duty. Must say they are a very well made. Better then the stuff new trailers are coming with off the lots. 608834



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


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 Power Twin II in Camper Jacks


1 bad switch but very good product 523885



- UF39-941705
by:

Review from a similar Power Twin II in Camper Jacks


Nice product. Shipping was fast and communications were good. Heavy duty stabilizers, I'm sure they will be more stable than the old scissor jacks. The only problem I had was the one ear was broken off of the one switch. Does not effect function but when you buy something new you expect it to be right. 523701


Comments
Works good no problems
Ken T - 06/19/2019

56816
31
75
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Ask the Experts about this Ultra-Fab Products Camper Jacks

  • Can I Use a Power Drill To Raise and Lower Ultra-Fab Power Twin II Manual Stabilizer
    I contact Ultra-fab and since the socket on the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs part # UF39-941704 is not a standard hex socket head there is not a way to raise and lower the stabilizer with a power drill. The socket on the stabilizer requires the rod to be inside the socket for it to turn. It is not the same hex head that you would find on an ultra-fab scissor jack like part # UF48-979006. The manual crank can be a lot of work which is why I recommend...
    view full answer...
  • Can Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 be Used for Stabilizing and Leveling
    Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 can be used for stabilization and leveling. Each side can be operated independently for leveling purposes. The max capacity of the whole system is 6,000 pounds so you can think of that as 3,000 pounds per side. They are not meant to lift up a trailer.
    view full answer...
  • Recommendations for Manual Stabilizer Jack with 22 Inches of Lift
    There isn't a manual version of the Ultra_Fab Power Twin stabilizer jack with 22 inches of lift but I do have some options for you. You can use Valterra Folding Manual Stabilizer for Trailers and RVs - 14" to 28" Tall - Aluminum Item # 020106 which uses a ratchet strap to raise/lower the legs. It would have to be placed in an easy to reach location though. Another option is to go with scissor jacks such as # UF48-979031. If you do go with these scissor jacks you can add Ultra-Fab...
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  • Electric Stabilizer Jack Options for a 2012 Keystone Laredo
    We have a few different electric stabilizer options that could work on your trailer. First we have # UF39-941705 which has dual motors and fits trailers and RVs with frames from 48" to 80" wide. It offers 30 inches of lift. It is rated for 6,000 pounds with the legs extended to 30 inches and 3,000 pounds with the legs extended 15 inches. We also have # UF39-941707 for trailers and RVs with frames from 42" to 77" wide. it has 22 inches of lift and is rated for 6,000 pounds. The amount...
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  • Recommended Stabilizer Jacks for 20 Foot Enclosed Car Hauler
    For the stabilization you are seeking, I recommend the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs # UF39-941704 or the Lippert Components High-Speed Power Stabilizer Jack - 30" Lift # LC298707. These will be superior to 4 independent stabilizer jacks and most likely have more lifting height. The recommended stabilizer jacks will give you cross frame support so you will have the frame support from both sides as you drive your vehicle on and...
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  • Could a Motor Be Added to the Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704
    Yes, you could add motors to the Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704. You would need the # UF39-750009 for motors (a quantity of 2) and then the # 39-841643 for replacement switches. When you add the prices together you are way better off getting the # UF39-941705 that comes with the same motors and wiring and jacks. Prices are all available below.
    view full answer...
  • Do Bolts of Ultra Fab Power Twin Stabilizer Jack Interfere with Bracket Mounting Flush to Frame
    I spoke with our contact at Ultra Fab and the bolts are upside down in our product pictures of the # UF39-941704 that you referenced. When they are installed properly they would not interfere with the mounting surface.
    view full answer...
  • How do the Ultra-Fab Stabilizer Jack Attach to RVs
    The Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs # UF39-941704 that you referenced is designed to be bolted on with the included mounting hardware. The difference between the # UF39-941704 and the # UF39-941705 is that the # UF39-941705 comes with dual 12 volt motors to raise and lower the legs of the stabilizer jacks. Whereas, the # UF39-941704 that you referenced require manual operation that includes cranking a jack handle.
    view full answer...
  • Can Ultra-Fab Stabilizer Jacks # UF39-941704 Fit 2019 Outdoors RV 260RLS
    The Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 would work well for you but you do need to remove the brackets you have on the chassis currently. This will need to attach directly to the chassis.
    view full answer...
  • Could Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 Fit Frame Width 67-1/8"
    The Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 that you referenced fits trailers that have frames that are 48 to 80 inches wide. Since you measured 67-1/8 inches wide this would easily fit your trailer.
    view full answer...
  • Can Ultra-Fab Stabilizer Jack be Used at Rear of Trailer
    Yes, the Ultra-Fab Power Twin II Stabilizer # UF39-941704 can be used at the rear of your trailer. It's designed to fit trailer's with frames from 48 to 80 inches wide and has a lift of 30 inches.
    view full answer...
  • Are Replacement Components Available For Ultra-Fab Power Twin II Electric Stabilizer
    We offer the Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors, part # UF39-941705 as a complete unit only. The only replacement components we offer for this system is the motor and switches. The prices for any of the products we carry are listed on the product page.
    view full answer...
  • Can Ultra-Fab Stabilizers Be Mounted to the A Part of an A-Frame Trailer
    The Ultra-Fab Power Twin II Manual Stabilizer, # UF39-941704, and similar products would have to be mounted just back from the A-frame part of the frame. They are meant to provide support and not lift the trailer so you would not need this type of item on the A-frame. The regular trailer jack or even some scissor jacks # UF48-979002 if needed would be the way to go.
    view full answer...
  • Will Ultra-Fab Power Twin II Manual Stabilizer Fit a 2003 Keystone Cougar 5th Wheel Trailer
    The frame width on your 2003 Keystone Cougar 5th wheel trailer will need to be between 48 and 80 inches (measured from the outside of the frame on one side to the outside of the frame on the other side) in order for the Ultra-Fab Power Twin II Manual Stabilizer, # UF39-941704, to fit. The stabilizer has L-shaped brackets that fit on the frame and will be bolted into place. It is a straight forward installation and the average do-it-yourselfer should have no problem performing the installation....
    view full answer...
  • Stabilizer Recommendations for 2016 Rockwood Ultra Lite
    For a travel trailer like your 2016 Rockwood Ultra Lite the best solution to prevent the movement is the Electric Ground Control TT system part # LC672136 which with the push of a button will level and stabilize the trailer better than other options. But it's not a cheap solution. Scissor jacks like the part # TJSC-24 are one option but like you found they don't totally get rid of the movement as well as something like the Ground Control or something like the Ultra Fab # UF39-941704.
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  • Recommended Stabilizer Jacks for 2016 Forest River 2608WS Travel Trailer
    I can't find the factory stabilization specs online, but I think you are correct in your assumption. To replace these jacks I recommend the Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors - 30" Lift - 6,000 lbs # UF39-941705. This allows individual side adjustment up to 30 inches of lift. For a manual option, I recommend the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs # UF39-941704. For stability under the slide I recommend the...
    view full answer...
  • Recommended Best Stabilizer System for 2018 Grand Design Reflection 28BH
    Your 2018 Grand Design 28bh, the JT's Strong Arm Jack Stabilizer Kit for 5th Wheel RVs # LC191023 can work. Another alternative is to use a stabilizer like the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs # UF39-941704 or an electric stabilizer like # LC369774. I recommend the Lippert Electric Stabilizer as the best option for you 2018 Grand Design.
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  • Recommended Largest Stabilizer Jacks For Jayco Octain Trailer
    For your Jayco Octain, I recommend the Ultra-Fab Ultra Scissor Jacks - 30" Lift - 6,500 lbs - Qty 2 # UF48-979031. The overall length of the mounting plate is 7-1/4 inches, and the width is 3-1/2 inches. I've attached measurements in the attached photo to assist. If you want an even more stable system, I recommend the Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors - 30" Lift - 6,000 lbs # UF39-941705 or the manual crank version # UF39-941704. These systems are adjustable...
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  • Can Ultra-Fab Power Twin II Stabilizer Jacks be Used on a 2017 Minnie Winnie 31K
    The Ultra-Fab stabilizers # UF39-941705 and # UF39-941704 are very similar and have all of the same specs. But there is one important difference. Set # UF39-941704 is manually operated and # UF39-941705 comes with 2 motors for electric operation. It might be possible to install a set on your 2017 Minnie Winnie 31K but there isn't a lot of space on the underside of that RV so it is possible, even likely, that the stabilizers will not fit. When fully retracted the stabilizers will hang...
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  • Dimensions of Motor and Gear Box of Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707
    I attached a picture that shows the dimensions of just the motor and gearbox of the Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707 that you referenced. This comes with a manual override crank in the event of an issue with powering the jacks but there is also a manual version of setup as part # UF39-941704.
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  • Manual Stabilizer for Trailer to Avoid More Wiring
    If you prefer a manual stabilizer there is one available, the Ultra-Fab # UF39-941704. This stabilizer fits trailers that have frames between 48" to 80" wide, has a 6,000 lb capacity and offers 30" of lift.
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  • Is there a Specific Direction a Scissor Jack has to Face on a Trailer
    Provided that you have the space and mount it properly you could mount a scissor jack such as # UF48-979032 any which way you want. You might be interested in a different type of stabilizer such as # UF39-941705 which is electric or # UF39-941704 which is manual. These stabilizers mount to the bottoms of the frame of the trailer but cover a longer range along the frame for greater stability.
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  • Can You Get the Lippert Electric Stabilizer Jack Without the Motor?
    The Lippert Components High-Speed Power Stabilizer Jack - Black Waterproof Switch Kit - 30" Lift # LC298707 or # LC369774 only come with the motor. You can get a replacement motor and replacement arms but the main support beam and legs are not replacement parts available. If you want a similar style jack without a motor you can use the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs # UF39-941704.
    view full answer...
  • Replacement Stabilizer Jack without an Electric Motor
    There is a similar manual stabilizer jack from Ultra-Fab. It is # UF39-941704. But there isn't a manual version of the Lippert model. We do have # LC298707 which does have the motor and does include the switch. The motor in this one is the high speed motor which is reported to be 2 times faster than the original.
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  • Availability of Ultra Fab Stabilizer Jack that is Manually Operated
    We have the part # UF39-941704 which is a manual operated stabilizer jack similar to the part # UF39-941704 that you referenced.
    view full answer...

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Info for this part was:

Written by:
Lindsey S
Expert Research:
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Expert Research:
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Expert Research:
Jeffrey L
Video Edited:
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Installed by:
Randy B
Updated by:
Sarah W
Updated by:
Halie H
Updated by:
Isabelle B
Updated by:
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Video by:
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