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      08-04-2014, 07:39 AM   #9
pbonsalb
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Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

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There is some theory that the wear is premature due to less than adequate clearance. I know coatings are thin, but any coating reduces clearance. I'd make your decision first on whether the clearance is adequate. Other theory say original factory spec 10W60 oil is too thick.

I went with WPC treatment, which either leaves clearance or may minutely improve it. Cost was $64 for me but a shop might get a lower rate. Quantity certainly would. Plus shipping both ways -- about $25-$30 total.

Best price I found on bearings was through FCP Groton at about $26 for the upper and $17 for the lower (or maybe vice versa) with free shipping. Bolts were around $6 each, since I used stock. ARPs are easier to install but around $300 for all 16. No known problems with stock bolts. Again, you can probably do better on these costs with your dealer connections. ECS Tuning was in the same price range.
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