Quote:
Originally Posted by Bobalong
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Really ? I had to shim my engine mounts up slightly to get the fan to quit rubbing the bottom of the shroud. I tried everything trying to determine why after all these years it started rubbing. Shimming fixed the problem, but I never knew the cause.
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There is another thread here from about a year ago addressing this issue. A PY member actually manufactured spacers to put under the motor mount brackets. I purchased some myself but havent installed them yet. I corrected my problem (Milodon oil pan rubbing the crossmember) with modified motor mounts before I saw these spacers. I intend to install them the next time I need mounts. I only had to jack mine up about 1/4 of an inch at the mount. Made a bigger difference overall than you may realize. I beleive in my case it was due to high mileage. (395,000). Plus some hard driving.
Your vibration is likely a combination of different things, but it is something to address.