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Nothing kills the comfort of a parked trailer faster than that side-to-side or front-to-back wobble when people move around inside. The JT’s Strong Arm Jack Stabilizer Kit uses six steel stabilizer bars that form rigid triangles between your jacks and frame, bracing the whole chassis to eliminate shaking and swaying. Once in place, the T-handle locks each tube tight so your setup feels solid from the first step inside.
No welding or fabrication is needed to mount this system. The brackets bolt directly to C-channel, I-beam, or H-beam trailer frames using included hardware—stiffening pads, spacer mounts, swing bolts, washers, and nuts. The telescoping tubes adjust for a perfect fit between your existing stabilizer jacks and crossmembers, while the T-handles let you fine-tune tension for a snug hold every time.
Every component in the kit is made from steel for strength and rigidity. Some pieces are powder coated and others zinc coated to fight corrosion, so they stand up to rain, road grime, and long-term campsite storage. The combination of coated finishes keeps the system operating smoothly season after season without seizing or rusting up.
The Strong Arm kit connects to traditional stabilizer jacks, scissor jacks, and landing gear right out of the box. If you’re running electric or hydraulic systems, adapter sets like #LC314597 or #LC314592 can be added so everything retracts properly without clearance issues. That flexibility makes it easy to tighten up your trailer’s stance no matter what jack system you use.
Everything you need comes in one box—six outer tubes, six inner tubes, six stiffening pads, four spacer mounts, six T-bolts, 30 nuts, 48 washers, 18 hex cap screws, 12 swing bolts, and eight hex washer heads—all backed by a 1-year warranty. Once installed and locked down with the T-handles, your trailer stays steady for loading, unloading, or just relaxing without the constant rock and sway.
Customer Satisfaction Score:
85% were satisfied with this product
15% of customers were not satisfied
Ratings & Reviews
Andy S.
9/12/2017
After 1 year the JTs are working great, I get asked about them a lot. Besides the slight bounce in the leaf springs of the camper when the JTs are locked in, the JTs do their job and do it well!
Neal M.
4/26/2020
Excellent, it’s like having a foundation under our camper. I’m so glad we added these to the camper. We love the camper but stability while camping was an issue. These should be a standard on all campers or highly recommended by a dealer. You will not be disappointed. However after the first camp outing you will ask yourself why you didn’t have these one the camper sooner. Happy Camping!
Jenny N.
6/14/2023
It is unusual that you would have so much movement in the camper. Would you be able to send a picture of how they are installed?
Jason
9/26/2019
Still doing the best that in can. If you want absolute stillness, that can be accomplished with some jack stands on the frame and a strong hydraulic lift.
Phil
5/21/2024
It has been one of the best things Ive ever added to my travel trailer. It works great!
Steven
7/29/2022
I have had the opportunity to put 5he strong arms to the test. And I have to say they work great and I had less movement in my RV. But you have to know how to use them to get full results. So this is how I have found out that works best. With you camper unhooked from vehicle level the camper front to back just with the tongue jack. Then let it down by counting to five. Then put your back jacks down snug and tighten strong arms. Then go back to tongue jack count to five and let it back up . Then put your front jacks down and tighten the strong arms . Then let some weight off of the tongue so the weight will be on the strong arms then you should be good.
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Robert
11/8/2021
After using these over the camping season this year, I would say it was worth every penny. These stabilizers take all of the movement out of the camper. It is very noticeable that that camper no longer has any movement and makes sleeping a lot easier.