I don't have any first hand experience with these bushings. Here's Ed Golden's website that explains them and a video on YouTube that demonstrates before and after results. They appear to make a notable difference. I'm not sure if the seller on ebay is the same as Ed, but Ed is the one who came up with the kits. https://www.goldinhands.com/american_flyer_wheel_bushing.htm
A forum community dedicated to model train owners and enthusiasts. Come join the discussion about brands, various scales, repairs, storage, displays, reviews, accessories, classifieds, and more!