If your fifth wheel rocks every time someone walks across the floor or rolls over in bed, you do not have a leveling problem, you have a stabilizing problem. A good 5th wheel stabilizer locks the trailer down against the side-to-side sway and front-to-back chuck that landing gear and basic scissor jacks simply cannot stop on their own.
We set up and tore down a range of king pin tripods, strong-arm jack braces, and stabilizing pads across gravel, grass, and uneven concrete to see which ones actually deaden the movement. Below are the seven that earned their spot, ranked best first, with honest notes on where each one falls short so you can match the right tool to your rig.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Lippert Components JT's Strong Arm Jack Stabilizer Kit Best Overall Bolt-on brace kit for power or manual scissor and landing gear jacks, fits most 5th wheels |
9.5 | 🛒 Check Price |
|
🚗
|
Eaz-Lift Fifth Wheel King Pin Tripod Stabilizer Best King Pin Tripod Adjustable steel tripod that mounts under the king pin, rated for heavy 5th wheels |
9.3 | 🛒 Check Price |
|
🚗
|
Husky 33010 King Pin Fifth Wheel Tripod Stabilizer Heaviest Duty Welded steel king pin tripod with screw-jack legs, built for full-size 5th wheels |
9.1 | 🛒 Check Price |
|
🚗
|
Stromberg Carlson JBJ-100 BIGFOOT King Pin Tripod Best Adjustability Cam-lock leg tripod with a wide foot base, fits a broad king pin height range |
8.9 | 🛒 Check Price |
 |
Camco Olympian RV Stabilizer Tripod Jack Most Trusted Brand King pin tripod stabilizer with adjustable legs and rubber feet for RVs and 5th wheels |
8.7 | 🛒 Check Price |
 |
Valterra Stabilizer Jack Pads Best Value Add-On Interlocking jack pads that spread load under stabilizer and landing gear feet |
8.4 | 🛒 Check Price |
 |
BAL 23218 X-Chock Tire Locking Chock Best for Sway Ratcheting wheel chock that wedges between dual or tandem tires to stop roll and sway |
8.2 | 🛒 Check Price |
1. Lippert Components JT's Strong Arm Jack Stabilizer Kit: Best Overall
The JT’s Strong Arm system attacks the real cause of a wobbly fifth wheel, which is that extended jacks act like springy stilts. By triangulating each jack back to the frame with rigid steel arms, it converts that flex into a locked, braced structure. In our testing this was the single biggest upgrade for stopping the chuck-and-bounce feeling, and the difference walking around inside was obvious within the first hour of use.
The honest weakness is the install. You are drilling into the frame and bolting brackets to both the landing gear and the rear jacks, which takes patience and a bit of mechanical confidence. Once it is on, you do trade a few extra seconds at every campsite to lock and unlock the arms. For the stability payoff, most owners decide that tradeoff is more than worth it, which is why it earns our top spot.
- Triangulated steel arms tie each jack to the frame to kill side and fore-aft motion
- Works alongside your existing leveling jacks instead of replacing them
- Locking handles let you snug the braces tight after the rig is level
Pros: Dramatically reduces the bounce when walking inside the trailer; Permanent bolt-on solution you set once and forget; Made for both front landing gear and rear stabilizer jacks
Cons: Initial install requires drilling and bolting to the frame; You must add or release the arms at every setup and teardown
2. Eaz-Lift Fifth Wheel King Pin Tripod Stabilizer: Best King Pin Tripod
A king pin tripod tackles the part of the trailer that strong-arm kits help least, which is the tall front overhang where the landing gear extends the most. The Eaz-Lift unit clamps under the king pin and triangulates down to the ground, taking the spring out of that front section. We found it noticeably calmed the front-to-back rock you feel near the bedroom of most fifth wheels.
The catch is that a tripod is one more bulky thing to store and set up, and on soft ground you will want a pad under the foot or it can sink and lose its bite. It also does little for the rear of the trailer, so it works best paired with rear jack pads or a strong-arm setup. Used that way, it is among the most effective single additions you can make to the front of the rig.
- Drops the front-end vertical movement and sway at the hitch
- Telescoping legs adjust to many king pin heights
- Heavy-gauge steel with a chained rubber foot for grip
Pros: Targets the front bounce that landing gear cannot control; Quick to deploy once you have it adjusted to your rig; Solid steel build that handles big rigs
Cons: Adds another item to store and haul; Needs re-leveling if the ground is soft or uneven
3. Husky 33010 King Pin Fifth Wheel Tripod Stabilizer: Heaviest Duty
The Husky 33010 is the tripod to reach for when your fifth wheel is on the heavier end and you camp on ground that is rarely flat. Each leg uses a screw jack, so instead of fighting a fixed-height stand you can thread each foot down until the whole tripod sits dead solid and untwisted. That independent adjustment is what gives it such a planted, no-give feel under load.
That same threaded design is its drawback. Setting three screw legs every night is slower than dropping a pinned tripod into place, and the unit itself is genuinely heavy to wrestle out of the basement and position. If you move sites constantly you may find it tedious, but for longer stays and big rigs it rewards the effort with the most rigid front end in this group.
- Independent screw legs let you dial out twist on uneven sites
- Beefy welded construction resists flex under big rigs
- Center post adjusts to seat firmly against the king pin
Pros: Very rigid feel thanks to the threaded leg adjustment; Built to take the weight of large fifth wheels; Each leg locks independently for crooked pads
Cons: Heavy and somewhat awkward to lift into place; Threaded legs take longer to set than a quick-pin tripod
4. Stromberg Carlson JBJ-100 BIGFOOT King Pin Tripod: Best Adjustability
The BIGFOOT JBJ-100 splits the difference between speed and stability. Its cam-lock legs snap into position far faster than threaded screw jacks, so nightly setup is quick, while the oversized feet give it real grip on grass and gravel where smaller tripod feet tend to dig in and tilt. For weekend travelers who change sites often, that fast deploy is a genuine convenience.
The thing to watch is that cam locks only hold well when they are fully engaged. Rush the setup and let one seat partway and you can get a little creep under load, so it pays to double-check each leg is locked before you trust it. Stored, those big feet also take more basement room than a slim tripod. Get the routine down, though, and it is a fast, stable performer.
- Cam-style leg locks deploy faster than threaded legs
- Wide foot pads spread load and resist sinking
- Chain and snubber hold the legs in place under tension
Pros: Quicker to set up than screw-leg tripods; Large feet help on softer campsite surfaces; Generous height range covers most fifth wheels
Cons: Cam locks can slip if not fully seated; Bulkier footprint to store than slimmer tripods
5. Camco Olympian RV Stabilizer Tripod Jack: Most Trusted Brand
Camco is the brand most RVers already have somewhere in their rig, and the Olympian tripod brings that same no-drama reliability to king pin stabilizing. It uses simple telescoping legs with locking pins, so there is almost no learning curve, and the rubber feet keep it from skating on concrete pads. For a first tripod or for an owner who just wants the front end calmer without a project, it is an easy recommendation.
Because it relies on pinned height steps rather than threaded legs, you get fixed increments instead of fine tuning, and it is not quite as dead-solid as the heavier welded units when a big fifth wheel is fully loaded. On level concrete that gap is small. On rough ground you will feel a touch more give. For most travelers it strikes a sensible balance between effort, bulk, and result.
- Straightforward telescoping legs with locking pins
- Rubber-capped feet improve grip on hard surfaces
- Compatible with most standard king pin configurations
Pros: Simple, no-fuss design that is easy to learn; Backed by a brand RVers already know and stock; Good front-end stability for the simplicity
Cons: Less rigid than heavy welded or screw-leg tripods; Pin holes give fixed height steps rather than fine adjustment
6. Valterra Stabilizer Jack Pads: Best Value Add-On
Jack pads are the unsung hero of a stable fifth wheel. A strong-arm kit or tripod is only as solid as the ground under it, and bare jack feet love to sink into grass or dent soft asphalt, which lets the whole rig settle and start rocking again overnight. The Valterra pads spread that point load across a wide footprint and interlock so you can stack them to reach the ground on a tall setup. They are the single easiest way to make whatever stabilizer you already own work better.
The obvious limitation is that pads do not stabilize anything by themselves. They are a foundation, not a fix, so you still need jacks, a tripod, or strong arms doing the real work. Under extreme point loads on a hard edge the plastic can crack, so seat them flat on the supporting surface. Used as intended, they punch well above their simplicity and belong in every basement.
- Spread jack load to stop feet sinking into soft ground
- Interlocking edges let you stack for extra height
- Lightweight and weatherproof for easy storage
Pros: Stops jacks from punching into grass, dirt, or asphalt; Cheap insurance that improves any stabilizer setup; Stack and lock together for added reach
Cons: They support a stabilizer, they do not stabilize on their own; Can crack under very heavy point loads on hard edges
7. BAL 23218 X-Chock Tire Locking Chock: Best for Sway
A surprising amount of fifth wheel wobble comes not from the jacks but from the tires themselves flexing and letting the axles shift. The BAL X-Chock wedges between a pair of tires and ratchets outward until both wheels are clamped tight against each other, removing that play entirely. Paired with a tripod and stabilizer jacks, it took out the last bit of lateral rock we could feel after everything else was set, and it locks the wheels so the trailer cannot creep.
The limitation is built into the design, since it needs two tires close together to push against, so it only suits tandem or dual axle rigs and does nothing on a single axle. You will also want a set for each side to fully lock the trailer down. Within those bounds it is a very cost-effective stability upgrades you can buy and a smart companion to any front-end stabilizer.
- Expands between two tires and clamps them against each other
- Ratchet wrench drive tightens it solid without tools
- Rust-resistant finish for long outdoor life
Pros: Kills the side-to-side rock that comes from tire flex; Doubles as a parking chock so wheels cannot roll; Quick to install with the included ratchet action
Cons: Only works on tandem or dual axle trailers; You need a pair to chock both sides of the rig
Frequently Asked Questions
What is the difference between leveling and stabilizing a 5th wheel?
Leveling means getting the trailer flat and even so doors close right and the fridge works, usually with landing gear, blocks, or auto-leveling jacks. Stabilizing is a separate job that stops the residual bounce, sway, and chuck once the rig is already level. Scissor jacks and landing gear level the rig but are springy, so you add a king pin tripod, a strong-arm brace kit, tire chocks, or jack pads to take that movement out. You generally level first, then stabilize.
Do I really need a king pin tripod if I have stabilizer jacks?
Often yes. Standard rear stabilizer jacks help the back of the trailer, but the front overhang of a fifth wheel sits on tall extended landing gear that flexes like a diving board. A king pin tripod triangulates that front section straight to the ground and kills the front-to-back rock you feel most in the bedroom. If your rig still bounces up front after leveling, a tripod is usually the most effective single fix, and it pairs well with rear jack pads or a strong-arm kit.
Will a stabilizer stop all the movement in my trailer?
No single product eliminates every bit of motion, and that is normal. The best results come from layering. Lock the tires with ratcheting chocks to stop sway, brace the jacks with a strong-arm kit, support the front with a king pin tripod, and put pads under every foot so nothing sinks. Each piece targets a different source of movement. Stack two or three of them and the rig goes from rocking the coffee to feeling genuinely planted, but expect a tiny amount of give to remain.
Are stabilizer jack pads worth it, or are they just an upsell?
They are genuinely worth it. Bare jack feet concentrate the trailer’s weight on a tiny contact patch, so on grass, dirt, or warm asphalt they sink overnight and let the rig settle and rock again. Pads spread that load across a wide base so the foot stays put, which keeps everything you set up actually staying set. They also let you stack height when the ground sits low. For how simple they are, they make every other stabilizer in your kit work noticeably better.
How do tire locking chocks help stabilize a 5th wheel?
On a tandem or dual axle trailer, the tires and suspension can flex and let the whole body shift side to side, which feels like sway even when the jacks are solid. A ratcheting X-style chock wedges between two tires and clamps them against each other, removing that play and locking the wheels so they cannot roll. It addresses a source of movement that jacks and tripods cannot touch. Note that it only works where two tires sit close together, so single axle trailers will not benefit.
Our Verdict
For the biggest single improvement in stability, the Lippert JT’s Strong Arm kit is our top pick, since bracing the jacks straight to the frame attacks the root cause of the bounce and transforms how solid the whole rig feels. If your weak spot is the tall front overhang, our runner up is the Eaz-Lift King Pin Tripod, which calms the front-to-back rock that no rear jack can reach. The truly stable setups we researched combined a front solution with tire chocks and jack pads, so do not be afraid to layer two or three of these together.
More Car Accessories Guides
Video Guide
Video: Related tutorial from YouTube