Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - loud whining / buzzing sound from rear only on deceleration

adrians_s13 · 06-29-2012, 12:14 PM

Hey guys. I'm need help trying to diagnose this loud whining / buzzing sound from my rear end that only seems to happen when I decel.

Now this only started happening after I:
-installed PSM solid aluminum subframe bushings
-installed SPL solid alum diff bushings (using J30 differential)
-replaced diff oil with 75w-90 Redline oil (iirc, 80w-90 was factory recommendation)

at first, I thought yeah, maybe because its all solid, its supposed to sound like that, but as I kept reading other people's posts about their sold bushing installation, none were complaining about the same noise I'm having.

any positive input is appreciated.
thanks

my car is an s13 by the way

06-29-2012, 12:14 PM	#1
adrians_s13 Post Whore! Join Date: Jul 2005 Location: long beach, CA ^_^ Age: 36 Posts: 2,877 Trader Rating: (29)	loud whining / buzzing sound from rear only on deceleration Hey guys. I'm need help trying to diagnose this loud whining / buzzing sound from my rear end that only seems to happen when I decel. Now this only started happening after I: -installed PSM solid aluminum subframe bushings -installed SPL solid alum diff bushings (using J30 differential) -replaced diff oil with 75w-90 Redline oil (iirc, 80w-90 was factory recommendation) at first, I thought yeah, maybe because its all solid, its supposed to sound like that, but as I kept reading other people's posts about their sold bushing installation, none were complaining about the same noise I'm having. any positive input is appreciated. thanks my car is an s13 by the way __________________ @adrianfromthecastle