Before you roll out, think tire size and coupler security. Trailers with wheel decks make bringing a car behind your RV straightforward, but choose wheel straps sized for your vehicle's tires and add a sturdy 2 inch ball coupler lock or a wheel lock to deter theft. Give assembly, lighting, and fasteners a careful once-over, keep tire pressures dialed, and remember that backing up a dolly can be challenging.
Any electric brake controller will work with a tow dolly that uses electric brakes. Mount the main unit where it's out of the way and route the control where you can reach it. You may need a wiring harness for your vehicle; verify the year, make, and model to get the right hookup.
Use a coupler lock that fits a flat-lip 2" ball coupler and add a latch pin lock while it's on the hitch. For off-vehicle storage, pair the coupler lock with a heavy-duty adjustable wheel lock. If needed, add a chain around a solid frame point and a fixed object. Layering locks discourages quick grab-and-go attempts.
Make sure each light is fully inserted in the rubber grommet. If the fit is loose, reseat it and check the grommet orientation. Give the lights a firm push to confirm they're captured all the way around. Recheck after your first miles. If a light won't stay put, look for an option that fits the grommet better to reduce the chance of it working loose.
Plan on a careful, patient setup. The yoke assembly can be tight because electrical connections get in the way—use cable ties to keep connectors up and away from the pivot bolt hole. Tail lights can be tricky; take time to fully seat them in the mounting grommets. Having two people and the right tools makes the job smoother.
Match the strap size to your vehicle's tire size. Small-tire straps can come off larger tires, so stepping up in size helps them stay put. Center the tire on the deck, snug the strap evenly, and recheck tension after a short drive. Replace worn straps to maintain a secure hold.
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