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Old 12-26-2020, 10:54 PM
Fifty150hs Fifty150hs is offline
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Join Date: Jul 2016
Location: Menlo Park, CA
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Quote:
Originally Posted by andrewwynn View Post
I have a problem with an out of round tire. Balance won't fix. The spare swap may be your fastest find also use vibration app to locate corner. Very helpful if you have somebody else drive.

Load up a grade suggests problem in the drive train like guibo or rear diff mounts.
Thanks for the suggestions. I've been taking vibration measurements. Plan on doing them again tomorrow. Looks like the weather will cooperate. I'll put the spare on and move it around. Drive train occurred to me as a possibility as well. The rear diff mounts are fairly new and are poly. The front guibo was replaced at approximately the same time frame. The drive line is original. Original guilbo, center bearing and CV. Car has 257,000 miles. The reason the driveline occurred to me is that about six weeks ago I discovered a broken rear diff bolt which had allowed the diff to sag. I'm thinking it could have caused damage to the center bearing or the rear CV. Any ideas on troubleshooting methods for those two bearings?
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