I use Jim's page religiously....it's awesome. If the noise is bad under acceleration, also check the center support bearing for the driveshaft. You have to remove the center heat shield to see it. Mine was shot completely and it caused a thump taking off or accelerating.

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1983 380SL
1995 C280
1995 S500 coupe
1990 Mazda Miata
2004 Suzuki Hayabusa