An interesting story about chains. Many years ago, ~1974, I was riding with my dad pulling a 2 horse trailer. This trailer was much older I'm sure (I was about 10 so didn't know much) but I do know it didn't have chains. Nothing broke but the trailer "jumped" off the ball and the tongue dropped into the road and flipped over on it's side. Fortunately we were moving slow on a gravel road. The horses had a heck of ride! They scrambled out of the trailer and we pulled it back up on it's wheels. It was a surprise when our horses jumped back in the trailer to finish the trip, I guess they had plenty faith in us. When we got back to the shop the trailer had a pair of chains welded on. I don't know exactly what caused the trailer to become unattached. It had plenty of miles on it without problems. Maybe the latch wasn't engaged with the ball? Nothing actually broke as far as I remember.
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