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Old 10-22-2018, 05:13 AM   #26
RZNT4R
Professional Mechanic
 
Join Date: Apr 2010
Drives: 2017 86 6MT Oceanic
Location: Quebec, Canada
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Quote:
Originally Posted by Bonburner View Post
we have no sound deadening besides 1 pad on each side of the rear quarter panel. I hear rock rattles in this car. I hear the transmission gear rattling, why not the LSD rattle?



Ultimately same situation. Gears in standing motion until sudden input causing adjustment in torque transmittance which may be causing the rattle.

At least for me, that's the direction the noise seems to be coming from.
If you'd've been reading what I posted, you'd know the sound is resonating in the engine block because I've been using a DSO on the knock sensors to pick it up.

If you're telling me rattle from the gear lash in the diff isn't getting lost in the super soft diff bushings, is making it's way up the driveshaft, through the transmission, through the sprung clutch hub and is showing up on the knock sensors clear as day,



Fine, but do more than just throw the idea out there, test and investigate. At least I'm doing real tests to find it.
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