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      10-24-2020, 12:30 AM   #1
deeldoo
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Drives: BMW M4 - DCT 2016
Join Date: Nov 2019
Location: Toronto

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For the past prolly 10k or so i get this wooshing/audible faint thud from somewhere under the car potentially in the rear when i get off the throttle abruptly or even on throttle quickly.

Also the car doesn't feel as connected, it almost seems like it takes a split second for everything to engage and the car to go when i step on it(this is not turbo lag). This is literally just any old movement even outside of boost.

This has me thinking my rear diff bushing is gone and turned into marshmallows. Everything feels lazy and like there is a bunch of slack back there. Also i do get some vibration nearing the 100 kph range in a set window and definitely a bit more pronounced at partial load.

For anyone who has had their diff bushing wear, have you had similar symptoms? Also have read that maybe some bolt/nut that connects the driveshaft to the diff might be the culprit?

Also what kind of labor hours am i looking at to replace the bushings/check the driveshaft are?
Appreciate 1