7 Best RV Leg Extensions for Improved Stability
Stabilize your RV with our top 7 leg extension picks. Discover durable, easy-to-install solutions that eliminate swaying and ensure a level, secure campsite.
There is nothing quite like the frustration of feeling your entire rig sway every time someone walks to the kitchen or rolls over in bed. Achieving a rock-solid foundation is the difference between a mobile house and a true, comfortable home on the road. Investing in high-quality leg extensions and stabilizers is the single most effective way to eliminate that unsettling "jelly" feeling.
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Understanding RV Stability and Leg Extensions
When you park your RV, the suspension and tires act like a giant spring, creating a constant, subtle bounce. Leg extensions—often called stabilizer jacks—are designed to bridge the gap between your chassis and the ground, effectively locking the frame in place. They aren’t meant to lift the weight of the RV, but rather to provide the tension needed to stop the chassis from shifting.
Without these stabilizers, you’re essentially living on a trampoline. Even minor movements, like opening a cabinet or a gust of wind, translate into vibrations that travel through the entire structure. By distributing the load and limiting frame flex, you create a static environment that makes small-space living feel significantly more permanent and secure.
Factors for Choosing Reliable RV Stabilizers
Before you buy, look closely at the weight capacity and the retracted-to-extended height range. A jack that doesn’t reach the ground is useless, and one that lacks the structural integrity to handle your rig’s specific weight will eventually buckle. Always measure your current ground clearance to ensure the extension range accommodates the uneven terrain you’ll inevitably encounter.
Think about how you’ll operate them, too. Manual scissor jacks are reliable and affordable, but power stabilizers save your back and speed up the setup process significantly. If you’re a solo traveler or frequently move locations, the convenience of a push-button system is worth the premium. Don’t forget to factor in the installation footprint; some jacks require specific mounting points on your frame that might not align with your existing configuration.
Lippert Components 285325 Power Stabilizer
If you are tired of cranking manual jacks in the rain or heat, the Lippert Power Stabilizer is your best friend. This system is designed for those who value speed and ease above all else, allowing you to level and stabilize your rig with the touch of a button. It is a robust, heavy-duty solution that takes the physical labor out of the setup process entirely.
However, keep in mind that this is a significant installation project that requires electrical wiring. It is ideal for someone looking for a permanent, high-end upgrade rather than a quick fix. If your goal is to make your RV feel like a luxury stationary unit, this is the gold standard, provided you have the budget and the patience for the initial wiring work.
Ultra-Fab Products 48-979006 Ultra Scissor
The Ultra-Fab Scissor Jack is a workhorse that favors simplicity and raw strength over bells and whistles. Its heavy-gauge steel construction is built to withstand years of abuse, making it perfect for the full-timer who parks on varied, rugged terrain. You’ll appreciate the powder-coated finish, which does a great job of resisting the rust that eventually claims cheaper alternatives.
This is the right choice for the DIYer who wants a "set it and forget it" solution that won’t fail when the ground is uneven. It isn’t the fanciest option on the market, but it is incredibly reliable for its price point. If you want a no-nonsense mechanical jack that you can trust to hold steady for years, look no further.
Husky Liners 70740 Stabilizer Jack System
Husky Liners has developed a reputation for durability, and their 70740 system doesn’t deviate from that path. These jacks are designed with a unique frame-mount system that provides a wider base of support than many standard factory-installed units. This wider stance is crucial for reducing side-to-side rocking, which is the most common complaint among RV owners.
I recommend these for anyone struggling with a rig that feels particularly "tippy." The installation is straightforward for anyone with basic mechanical skills, and the performance improvement is immediately noticeable. If you are tired of your rig swaying during a light breeze, these stabilizers provide the firm anchor you need.
Camco Olympian Aluminum Stack Jacks Set
Stabilize your RV with Camco Stack Jacks. These durable aluminum jacks extend from 11" to 17" and support up to 6,000 lb each, providing a stable and level camping experience.
Sometimes, the simplest solution is the best. The Camco Olympian Stack Jacks aren’t permanently mounted to your frame; instead, they are portable, lightweight, and incredibly easy to store. They are perfect for smaller travel trailers or pop-up campers that don’t have the frame space for heavy, permanent bolt-on jacks.
They aren’t designed to support massive fifth wheels, but for lighter rigs, they provide an excellent, cost-effective way to add stability. Because they are portable, you can place them exactly where you need them most, such as under a slide-out or near the entry stairs. They are a must-have for the minimalist traveler who needs extra support without adding permanent weight to the chassis.
BAL 28025 Light Trailer Stabilizer Jack
The BAL 28025 is specifically engineered for smaller, lightweight trailers where every pound counts. These jacks are designed to be tucked away neatly when not in use, maintaining the aerodynamic profile of your trailer. They offer a smooth, telescoping action that is easy to adjust, even if you’re working in tight spaces.
This is the perfect choice for the van-life conversion or the teardrop trailer owner who needs stability without the bulk. They aren’t meant for heavy-duty, long-term residential use, but they excel in the niche they were built for. If you have a lightweight rig and want a clean, low-profile look, this is your best bet.
Stromberg Carlson JSJ-6 Scissor Jacks
Stromberg Carlson is a legendary name in the RV industry for a reason: they build gear that lasts. The JSJ-6 Scissor Jacks are built with a high-quality, heat-treated steel that handles tension exceptionally well without bending. They are remarkably easy to operate with a standard drill adapter, which saves you from manual cranking fatigue.
These jacks are ideal for the medium-to-large travel trailer owner who wants a balance between professional-grade durability and reasonable pricing. They provide a very solid, locked-in feel that inspires confidence when walking through your rig. If you want a reliable upgrade that will likely outlast the RV itself, this is a top-tier contender.
Eaz-Lift 48860 RV Stabilizer Jack Kit
The Eaz-Lift kit is a comprehensive solution for those who want to replace their entire stabilizer system at once. It comes with everything you need for a complete overhaul, ensuring that all four corners of your RV are working in perfect harmony. The build quality is consistent, and the ease of installation makes it a favorite for weekend mechanics.
This is the right choice for someone whose factory jacks have finally given up the ghost. It provides a uniform, reliable, and stable foundation that is much better than the basic equipment that comes stock on most entry-level trailers. If you want a total system refresh that offers great value, this kit is hard to beat.
Tips for Installing Your New Leg Extensions
When installing new jacks, always ensure the surface you are mounting to is clean and free of debris. Use a level to ensure the jack is perfectly vertical; even a slight tilt can compromise the jack’s ability to distribute weight effectively. Always use high-grade, rust-resistant hardware, as these components will be exposed to road salt, mud, and water constantly.
If you are bolting into the frame, double-check your RV manufacturer’s guidelines to avoid drilling into critical structural welds or electrical conduits. Once installed, apply a high-quality lubricant to the threads to keep the operation smooth for years to come. A little bit of maintenance during the installation process prevents a world of frustration down the road.
Investing in the right stabilizer system is an essential step in transitioning from simply parking your RV to truly feeling at home. Whether you opt for the convenience of power jacks or the rugged reliability of manual scissor systems, the goal remains the same: a stable, secure, and comfortable living space. Take the time to choose the right gear for your specific rig, and you will enjoy a much more peaceful experience on your next adventure.
