Introduction: A broken spring on a single axle trailer can quickly derail your plans, as I recently experienced firsthand. I was called out to pick up a trailer that had a broken spring on the driver's side. The trailer was hauling a tracked concrete buggy, a heavy load that no doubt contributed to the spring's demise. Thankfully, I had my hydraulic tilt trailer handy to safely transport both the trailer and the buggy back for repairs. This incident reminded me of the importance of knowing how to handle such breakdowns efficiently. In this guide, I’ll walk you through each step to ensure you can get your trailer back in action safely and quickly, just like I did.

Tools and Materials Needed:

• New trailer spring (make sure it matches the specifications of the original)

• Socket set

• Wrench set

• Jack and jack stands

• Wheel chocks

• Safety glasses and gloves

• Lubricant (like WD-40)

• Hammer or mallet

Step 1: Secure Your Trailer Before you begin, ensure your trailer is on a flat, stable surface. Use wheel chocks to block the wheels opposite the side you’re working on to prevent the trailer from rolling.

Step 2: Lift the Trailer Using a jack, lift the side of the trailer where the spring needs to be replaced. Place jack stands under the trailer frame to support it securely while you work.

Step 3: Remove the Wheel Remove the wheel by loosening the lug nuts with a wrench. This will give you clear access to the spring and its components.

Step 4: Unbolt the Old Spring Use your socket set to remove the bolts securing the spring at both the front hanger and rear shackle. You may need to use some lubricant if the bolts are corroded or tough to remove.

Step 5: Remove the Broken Spring Once the bolts are out, carefully remove the broken spring. If it’s stuck, gently tap it with a hammer or mallet to free it from its position.

Step 6: Install the New Spring Position the new spring in place, aligning it with the front hanger and rear shackle. Insert and hand-tighten the bolts to hold it in place initially. Ensure that the spring’s curve aligns correctly with the shape of the trailer.

Step 7: Secure the New Spring Using your wrench, tighten the bolts at both the front and rear of the spring. Ensure they are snug but be careful not to overtighten, as this could strip the threads or damage the metal.

Step 8: Replace the Wheel Put the wheel back on and tighten the lug nuts by hand. Lower the trailer from the jack stands and then use a wrench to fully tighten the lug nuts in a star pattern to ensure even distribution of pressure.

Step 9: Perform a Safety Check Once everything is reassembled, give your trailer a thorough check. Make sure all parts are secure and properly aligned. It’s also a good idea to check the spring and surrounding components after a short drive to ensure everything remains tight and in place.

Conclusion: Replacing a broken spring on a single axle trailer is a manageable task for any DIYer with basic mechanical skills and the right tools. With this guide, you can ensure your trailer is safe and ready for the road. If you ever find yourself in a pinch, remember that a little knowledge goes a long way—just like when I had to use my hydraulic tilt trailer to rescue a trailer and a concrete buggy. If you need any tools, parts, or advice, swing by We Rent It on The Hill — we're here to help, sharing our own experiences and expertise to keep you rolling safely.