My last 2 trailers have had Morryde pins. That said, both pin assys were rated @19,000lbs. My trailer has a gvwr of 14,900lbs. I removed the rubber block which had a #5 molded in the side and replaced it with a #4 block. The higher the number the stiffer the rubber block.
So for a lighter trailer, you need a softer block for the trailer to work against. The rubber block is the one in the pin assy. Worked for me.
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