Camco 44435 Tandem Wheel Chock, Yellow Hard Plastic, Single

The Camco 44435 Tandem Wheel Chock is the simple piece of gear that keeps your dual-axle trailer right where you parked it. It's a single yellow hard-plastic chock that wedges into the gap between the two tires on one side of a tandem axle. You push it in, and those tires can't roll forward or back. That's the whole job. And for a part that costs about what lunch does, it does that job honestly well.

If you tow a boat on a tandem trailer, you already know the feeling. You back down the ramp, or you pull into the storage yard, and the rig wants to creep the second you step away from the tongue. A single chock behind one wheel helps some. But a tandem chock locks both tires of the axle pair against each other, so you get a more positive hold and a faster set. Slide it into the gap, give it a firm nudge with your boot, and you're done.

Setting it is about as easy as gear gets. Line the wedge up with the gap between the front and rear tire on one side, then push it down and in until it's snug against both treads. The shape does the work from there. When you're ready to roll, pull it back out by hand. No ratchets, no tools, nothing to forget in the mud. On a launch ramp, set it before you unstrap the boat so the trailer stays put while you work.

The chock is molded from hard plastic with UV inhibitors built into the material. That matters more than it sounds. A trailer chock lives outside, and cheap plastic that bakes in the sun goes brittle and cracks the first time you lean on it. The UV treatment slows that down, so you get real seasons out of it instead of weeks. The bright yellow does double duty too. It's easy to spot on a dark ramp at dawn, and it's hard to drive off and forget when it's that color sitting by your tire.

It fits tires up to 26 inches, which covers the great majority of boat trailers, utility trailers, and travel-trailer axles out there. Measure your gap and your tire diameter first if you're running an unusual setup. And know what this is and isn't. It's a tandem chock, built for the space between two tires on a dual axle. On a single-axle trailer there's no gap to wedge into, so you'd want a standard behind-the-wheel chock there instead.

Here's where it earns its keep for boaters specifically. Picture a busy weekend ramp. You've got the boat halfway off the trailer, the current's pushing, and the last thing you want is the rig easing backward while you're wrestling the bow line. Set the tandem chock before you touch the straps and that worry goes away. Same story in the driveway. Drop the chock in when you park the loaded trailer and it isn't going to nose into the garage door overnight. It's cheap insurance against the kind of slow creep that turns into a dent.

One honest note from the ramp. A wheel chock is a rolling stop, not a tie-down. On a flat pad it'll hold your trailer fine on its own. On a real slope, or for long-term storage, back it up with blocking behind the wheels and use wheel locks or straps for security. Chocks and locks do different jobs, and the smart move is to run both. Grab a pair if you want to chock both sides, since the 44435 ships as a single.

The packaging is printed in English and French, so it's the same part whether you picked it up in the States or up in Canada. It's a small thing, but it's why the box reads the way it does. Under the label it's the same Camco 44435 either way.