Ok. I've done more reading and watched the video from jonesy, one other guy, and the video series from Me My posted above. I do have a question about the snap ring pre load. What is that? Video 6 of 6 on the Me My series is the only one that mentioned anything about it. All the others just put the old snap ring back on. Also if my bearings look good, should I just clean them and repack them and save the new ones I have for next time? Is it better to go with the new ones? If I clean, do I just clean with degreaser or do I need a parts washer? Sorry if this seems like dumb questions.