If your fifth-wheel rocks, bounces, or shifts every time someone moves around inside, the JT's Strong Arm system fixes that permanently. This bolt-on kit ties your front landing gear and rear scissor jacks together with a rigid tube network, cutting out the chassis flex that makes 5th wheels feel unstable at camp. No welding, no fabrication -- just a one-time installation that stays on your rig for good.
Fifth-wheel trailers are long, heavy, and built on frames that were designed to flex on the road. That same flex becomes a problem the moment you park. Walking from the bedroom to the kitchen, stepping up into the rig, or even a strong gust of wind can set the whole coach rocking. Slide-outs make it worse by shifting the center of gravity as they extend.
The JT's Strong Arm system works by creating a triangulated brace network between the front landing gear legs and the rear stabilizer jacks. Instead of each jack working independently, the tubes lock everything into a unified structure that resists movement in every direction -- front to back, side to side, and corner to corner.
No welding required. All hardware is included for a permanent attachment to your trailer frame. Install once and it stays.
Works with C-channel, I-beam, and H-beam trailer frames. Brackets accommodate the three most common RV frame profiles.
Attaches to scissor jacks, electric/electronic jacks, and telescoping jacks. One kit covers the most common 5th wheel jack configurations.
Each tube locks tightly in place with a T-handle mechanism. Quick to deploy and secure; no tools needed after initial setup.
The brackets mount permanently to your trailer. When you make camp, you extend and lock the tubes -- no re-installing hardware each trip. The system is ready to deploy every time you level up.
The LIP191024 kit includes everything needed for a complete installation on a qualifying fifth-wheel trailer:
The LIP191024 (this kit) is correct when your front landing gear legs mount to the inside of your fifth-wheel's main frame rails. If your landing gear mounts to the outside of the main frame, you need part 191023 instead. Check which side your landing gear brackets attach to before ordering.
This kit is sized for fifth-wheel trailers where the distance between the two front landing gear legs is 58 inches or less. Measure the center-to-center or outside-to-outside span of your landing gear before purchasing. Trailers with wider landing gear spacing require a different kit.
The 58" dimension refers to the spacing between the front landing gear legs on your 5th wheel -- not the overall trailer width. Grab a tape measure and check before ordering. Using a kit sized for the wrong span will result in tubes that don't reach or bracket hardware that won't align properly.
The Strong Arm bracket system is designed to attach to the three most common jack types found on fifth-wheel trailers:
If you are unsure of your jack type, look at the rear stabilizer corners and the front landing gear. Scissor jacks have an X-shaped cross-brace; telescoping jacks extend straight down in a tube-within-tube design; electronic jacks have a motor housing at the top.
Level your trailer completely before installing or deploying the Strong Arm tubes. Extending the tubes while the trailer is off-level can introduce twist into the frame and make the system harder to lock. Torque all permanent bracket hardware to spec during initial installation and re-check after the first few uses.