Thanks for your response 901glide. I took a look but didn't see anything about bushing replacement. It looks like the riser are threaded on with the bushings underneath. Do the risers unscrew to remove? They seem in good shape and are not loose. I'm thinking about skipping this all together.
JMeadows, perfect, thank you. I'll head to my dealer tomorrow and pick up some polyurethane bushings. Thanks to everyone's responses.