You can usually use a screwdrive on each end of the open part of the clip and push it off. Then you'll need to hammer the caps out, kind of a trick to doing it if you've never done it. Just whatever you do, dont smack the welds, the tube, or vice the tube, drop it, or anything...you'll create a vibration.
Easy on installing the new ones, those needle bearings can get away from ya.