Finished rebuilding my Moog idler arm with Firm Feels roller bearing rebuild kit. It was a pretty easy process. I did need to grind a little bit of metal out of the lower opening in order to allow the new inner sleeve to pass through without binding. Once the idler was bolted onto the K-member, there is no slop either up or down or side to side. I don't know how much seat-of-the -pants improvement it will make with handling but I'm hoping that all the upgrades combined will help to make a huge difference.