Very loud clanking sound from rear end - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

FourtyKid · 04-06-2013, 09:55 PM

I get this really loud clanking sound sometimes from my rear end. J30 LSD is installed. LSD's aren't loud are they? It sounds like that's where it's coming from but it might be the subframe bushings, correct?

Any idea on what it could be?

OrangeVirus1 · 04-06-2013, 10:00 PM

everyone on here says LSD's make loud clunking popping snapping noises all the time.

yetijeff · 04-06-2013, 10:02 PM

Are u sure its a j30? J30 is a vlsd not supposed to be loud... Buuuuut if if its a 1.5 or 2 way (kazz. Any clutch type) it's gonna pop when u turn.

2.5T_/<ouki · 04-06-2013, 10:04 PM

Does the noise happen when shifting gears? Usually a subframe bushing problem. 240's are infamous for this.

*fliprayzin240sx* · 04-06-2013, 10:22 PM

If you are not sure if its subframe bushings...thats what it is...

FourtyKid · 04-06-2013, 11:59 PM

Quote:

Originally Posted by fliprayzin240sx

If you are not sure if its subframe bushings...thats what it is...

OK, so should I go with Powered By Max subframe Risers or Polyurethane bushings?

2.5T_/<ouki · 04-07-2013, 12:02 AM

Quote:

Originally Posted by FourtyKid

OK, so should I go with Powered By Max subframe Risers or Polyurethane bushings?

Daily car? I would go with closest to OEM.

*brndck* · 04-07-2013, 12:04 AM

only a clutch type lsd should be loud (clunking and popping)
a vlsd or a helical should NOT make loud noises.

FourtyKid · 04-07-2013, 12:19 AM

Quote:

Originally Posted by 2.5T_/<ouki

Daily car? I would go with closest to OEM.

Mostly track, sometimes daily. Will be lowered a bunch, which is why I was kind of leaning toward the PBM risers.

S14jake · 04-07-2013, 12:46 AM

you sure its a j30 and not a welded?

04-06-2013, 09:55 PM	#1
FourtyKid Zilvia Junkie Join Date: Aug 2012 Location: Minnesota Posts: 517 Trader Rating: (11) Feedback Score: 11 reviews	Very loud clanking sound from rear end I get this really loud clanking sound sometimes from my rear end. J30 LSD is installed. LSD's aren't loud are they? It sounds like that's where it's coming from but it might be the subframe bushings, correct? Any idea on what it could be? __________________ @s13cole

04-06-2013, 10:22 PM	#5
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	If you are not sure if its subframe bushings...thats what it is... __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

04-07-2013, 12:46 AM	#10
S14jake Zilvia Member Join Date: Aug 2008 Location: Santa Monica, CA Age: 35 Posts: 253 Trader Rating: (11) Feedback Score: 11 reviews	you sure its a j30 and not a welded? __________________ meh

04-06-2013, 10:00 PM	#2
OrangeVirus1 BANNED Join Date: Jan 2013 Location: PyongYang DPRK-N. Korea, Province 2 Posts: 1,236 Trader Rating: (0) Feedback Score: 0 reviews	everyone on here says LSD's make loud clunking popping snapping noises all the time.

04-06-2013, 10:02 PM	#3
yetijeff Zilvia Addict Join Date: Sep 2010 Location: Corona Ca Age: 35 Posts: 765 Trader Rating: (3) Feedback Score: 3 reviews	Are u sure its a j30? J30 is a vlsd not supposed to be loud... Buuuuut if if its a 1.5 or 2 way (kazz. Any clutch type) it's gonna pop when u turn.

04-06-2013, 10:04 PM	#4
2.5T_/<ouki Zilvia FREAK! Join Date: Oct 2011 Location: SoCal Posts: 1,150 Trader Rating: (13) Feedback Score: 13 reviews	Does the noise happen when shifting gears? Usually a subframe bushing problem. 240's are infamous for this.