Quote:
Originally Posted by Luv2Box
I had the dual row in my '99 Boxster changed in 2012 and it has 32K miles on it. I read up on the bearing before having it installed and what was being advertised, at that time, was a recommended change at 50K miles. The statistics, though, indicated ceramic bearings outlasted steel by a 5:1 ratio. What I've never understood, or found an answer for, is what is the starting point for the ratio of 5:1? If my OEM bearing had 84K miles on it and was still in good shape does that mean 420K miles? If it is 5:1 what do I need to change the LN at 50K? Perhaps someone can explain the reasoning.
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One word: Caution. LN goes on their experience with the bearings, not pat ratios.
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