This is a picture of the chain system that moves our rear slides in and out. Our coach is an '06 Dyanasty. I think the rollers were maybe a little less than ½" wide, and maybe ¾" or more in diameter. Does your roller look somewhat like that? Mine lost at least one roller, and I've not experienced any problem from it being missing. Too many, and I'm sure it would become a real problem, but so far, so good.
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Jim & Angie, Boise, ID
2021 Entegra Esteem 27U
2017 GMC Acadia Denali
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