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      02-23-2021, 03:33 PM   #2
ewicky
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Drives: '07 335xi 4D AT
Join Date: Jan 2017
Location: Seattle, WA

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I've had an Amazon special front drive shaft for a year or so. No problems so far.

Factory one the ujoint bearings went bad. Ujoints were very stiff but no catastrophic failure. Only noticed cuz I took the shaft out for trans job.

I had called a local drive shaft repair company cuz I always like to try repair before replace, and local small biz before multi-national conglomerate. They said it cannot be repaired and a new one was like $500. I said "new ones on amazon are $106, sell me on why I should by from you." He said the amazon one is unlikely to fit and won't have balancing weights welded on.

So I got the amazon one anyways. Fit seems perfect. Has balancing weights welded on each end.

Amazon one probably isn't as good as genuine, but genuine lasted over 10 years. Even if Amazon lasts 5 years, that's good enough in my book.

Why the shaft doesn't just have replaceable ends/bearings, IDK.
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