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      08-09-2012, 03:45 PM   #71
italyix's Avatar

Drives: '08 E90 M3
Join Date: Dec 2011
Location: Bay Area

iTrader: (5)

Originally Posted by e92zero View Post
Anyone planning to just install the diff bushings? Member tres mentioned that he installed the diff bushings and there is no increase in NVH. However, member italyix mentioned that the diff bushings is really bad in increased NVH. But italyix also install the subframe bushing at the same time. Want to see if there is a clear result on which bushings increase NVH the most.
The meshing noise created by the diff gears travels directly through the chassis and into the truck. The trunk is acting like a bass box and amplifying the noise. This could be attributed to the fact that yes, I have subframe bushings installed, therefor the noise travels from diff -> chassis -> bushings -> trunk.
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