Check out how to build a spring assisted trailer tailgate made from an old leaf spring and some scrap steel.
My FIL has been working on rebuilding this old trailer. He built a nice fold down gate on it, but it ended up being too heavy for anybody other than him or myself to lift.
We looked at some coil springs like they put on gooseneck ramps, but I remembered seeing a setup like below on the old little flatbed U-haul trailers (I haven’t seen one in years)
So we drew some pictures and dug through my random offroad parts bin. He put it all together himself and when he first finished, the gate didn’t even touch the ground. With the washers above the spring, it just lightly comes to a rest on the ground when you let go.
A little ingenuity, some scrap parts, and some hard work made a very useful end product. Between all of our family and friends this trailer gets used almost weekly. Best of all, it is small enough to tow behind my “Honda Hauler”!
For those of you that think obtaining these supplies and welding them together is too hard, there are off the shelf solutions that you can purchase but in DIY fashion install them yourself without a welder. It is called the Gorilla-Lift 2-Sided Tailgate Lift Assist.