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fit or replace

  1. 2004-2009 Mazda3 Discussion
    My car has 178K on it, I've replaced the trans fluid with a good synthetic (75W90 Amsoil) and all other shifting is normal. I'm getting a high pitch noise when I'm in 5th, it's not critical or too loud, but it can be annoying, and I'm thinking it's a bearing of sorts... question: can I replace...