I have the same trailer that I just bought in October, so a lot fewer miles, but I have not heard anything about the bushings. I don't recall reading anything in about that in the owners manual either.
I would hope that the trailer would be designed to get more than just a few thousand miles out of these bushings though. But what do I know, I'm pretty new to all this.
Sorry I'm not much help with an answer, but I'm very interested in what you find out.
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2011 Chevy Silverado Crew Cab 4X4
2009 210 WBS
Prodigy P3
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