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Old 04-30-2014, 01:38 PM   #1
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rear main seal

ok.. ive had a rear main seal leak since last year. and i have a clunking noise when i accelerate or hit the brakes. bad tranny mount? and would a bad tranny mount cause a rear main seal leak? Thx
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Old 05-01-2014, 04:50 PM   #2
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Re: rear main seal

I doubt the two are related but it does sound like a bad trans mount. Real easy to swap and you can get them almost anywhere. I wouldn't recommend polyurethane unless you want to feel every single bit of driveline vibration.

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Old 05-01-2014, 07:26 PM   #3
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Re: rear main seal

awesome. i definetly will go with the polyurethane mounts. im on the AutoZone website and shows they have that in stock. just wondering if its the full mount? or do i have to take my old one apart for the bolt?

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Old 05-02-2014, 03:12 PM   #4
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Re: rear main seal

You get everything you need in the kit. Again, though, I would recommend against polyurethane unless you have a track car or something.

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Old 05-03-2014, 02:29 PM   #5
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Re: rear main seal

Really varies from car to car. The M6 doesn't seem to be as unforgiving with a poly trans mount. I had the ES poly under my original T56 (a little "buzz" from the shifter) and then under the TH400 and now under the TH400 + Gear Vendors O/D, and never found the noise or vibration to be a problem.
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