don't fix it if it's not broken.
Well, color me stupid too, because I changed out a "perfectly good part" around 30-40K miles too.
Hi Pete, your post sounds just a little bit critical of someone's decision to rebuild/replace a part that is known to fail more than it should (never mind estimates of what percentage is failing).
Ever heard of TBO hours in the aircraft world? After a certain number of hours certain things get rebuilt/replaced rather than wait for them to fail. Well the LT isn't going to fall out of the sky if a rear drive fails, but some of us would rather replace a "perfectly good part" at home on our own schedule rather than wait for it to fail on the road. It may be unnecessary but we don't know that, we know there is a risk of failure with final drives.
For less than $200 and a few hours of labor we get the peace of mind afforded by a new bearing. And if time is taken to carefully calculate pre-load as I did, there is the assurance that the bearing is properly set up.
Consider those of us who do pre-emptive bearing changes as those who are willing to purchase a little more trip insurance. When you consider what some folks have dealt with regarding tow charges, vacation time lost, bike down time, etc., a little insurance against that doesn't seem all that foolish to me.
And by the way, my final drive had no outward signs of any problems, but when I got the old bearing out and cleaned up, it had a slight roughness that was not evident when the bearing was oiled. There was slight roughness that was simply not dectable without disassembly and inspection. I have no regrets about doing a pre-emptive rebuilt and would not discourage anyone else from doing it, especially if they have one of the early models which seem more prone to failures.
Originally Posted by petepeterson
Okay, let me make sure I got this right,,,,,
You change a perfectly good part with only 45K on it that would probably have gone another 100K because you thought the part might go bad some day.... Did I get it right???