whiteline diff bushing gear noise

Masterbeatty · 02-19-2015, 11:13 PM

Quote:

Originally Posted by andy_meng1024

It's normal. I have the SPL ones, probably 3 times worse than Whiteline in noise, but 3 times better in performance.

I love the sound the SPL bushing makes except when it whines right at the common speed limit around here, 40 mph.

Optimiser · 02-19-2015, 11:51 PM

The safe thing is to expect it will make noise.

TerribleONE · 02-20-2015, 12:45 AM

Quote:

Originally Posted by 370Z JT

Makes me think twice about getting the whitelines now. Is this whine kind of a hit and miss thing, or will I definitely get it?

It's well worth it to help reduce wheel hop and it's not just the whitelines that will cause this.

juld0zer · 02-20-2015, 01:18 AM

you'll definitely get it. simply due to the different material and design - eg. silicone filled main bushing vs Whiteline's solid elastomer construction.

the other reasons for the noise relate to the potential pinion angle/universal joint phasing issue. the ear bushing design is also different to oem

Crux · 02-20-2015, 09:29 AM

For those of you who run whiteline/spl differential bushings: do you run motor mounts and/or transmission mounts as well?

Zat_Zuma · 02-20-2015, 09:52 AM

Quote:

Originally Posted by Crux

For those of you who run whiteline/spl differential bushings: do you run motor mounts and/or transmission mounts as well?

Yes

L33T Z34 · 02-20-2015, 10:25 AM

You'll hear the ring 'n pinion spin w/performance oriented bushings. It's a given. This is why OEM use mushy rubber bushings, to quiet NVH.

JARblue · 02-20-2015, 10:50 AM

Why are people complaining about additional noise when you upgrade OEM parts to more performance-oriented parts (if not all out racing parts)?

I got my whiteline diff bushing kit installed about 5K miles ago. No complaints other than I wish I had gotten SPL solid bushings instead.

The Z is my DD btw and I don't even track it. Go buy a Tesla if you want a silent sports car

Charles370 · 02-20-2015, 11:48 AM

I just didn't know it would make my z sound like it is an f1 car lmao

JARblue · 02-20-2015, 12:15 PM

Quote:

Originally Posted by Charles370

I just didn't know it would make my z sound like it is an f1 car lmao

I doubt your Z sounds anything remotely like an F1 car

DR_ · 02-20-2015, 12:20 PM

Heavier diff fluid helps quiet it down some.

Charles370 · 02-20-2015, 12:23 PM

yea thats what my mechanic was saying, i got gears installed and im changing the fluid next week after 500 miles.

Charles370 · 03-22-2015, 09:41 PM

I want to bring this back up. My whine that was insane that I talked about before was due to the bearing on the main pinion slipping loose and rattling around. Apparently it is a rare occurrence by a defective bearing. Idk if that is the mechanic just covering his *** or not. But whatever I had to order a new bearing and install kit and have the job redone. Everything is good now and the whine from the bushing is barely anything. I only get a whine around 40-50 mph and again at 60mph. I like the noise though and it does add character to the car. All in all I am happy with the bushings now

Taylortoons · 03-23-2015, 08:32 AM

Cool. Thanks for sharing your experience. I should have my installation complete in the next two weeks.

Presto · 03-23-2015, 02:20 PM

do you guys install the smaller bushing on top or bottom of the diff? i believe that makes a difference in the whine sound.

02-19-2015, 11:51 PM	#17 (permalink)
Optimiser Enthusiast Member Join Date: Mar 2013 Location: Australia Posts: 455 Drives: 2012 Nissan 370Z MT Rep Power: 20144	The safe thing is to expect it will make noise. seanocon370 likes this.

02-20-2015, 09:29 AM	#20 (permalink)
Crux Enthusiast Member Join Date: Mar 2012 Location: Maryland Posts: 253 Drives: 09 370z 7AT Rep Power: 13	For those of you who run whiteline/spl differential bushings: do you run motor mounts and/or transmission mounts as well? __________________ My Build

02-20-2015, 10:50 AM	#23 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Why are people complaining about additional noise when you upgrade OEM parts to more performance-oriented parts (if not all out racing parts)? I got my whiteline diff bushing kit installed about 5K miles ago. No complaints other than I wish I had gotten SPL solid bushings instead. The Z is my DD btw and I don't even track it. Go buy a Tesla if you want a silent sports car TerribleONE, Davey and Masterbeatty like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

03-22-2015, 09:41 PM	#28 (permalink)
Charles370 Base Member Join Date: Oct 2013 Location: Long Island Posts: 30 Drives: 2010 370z sport Rep Power: 12	I want to bring this back up. My whine that was insane that I talked about before was due to the bearing on the main pinion slipping loose and rattling around. Apparently it is a rare occurrence by a defective bearing. Idk if that is the mechanic just covering his *** or not. But whatever I had to order a new bearing and install kit and have the job redone. Everything is good now and the whine from the bushing is barely anything. I only get a whine around 40-50 mph and again at 60mph. I like the noise though and it does add character to the car. All in all I am happy with the bushings now Ryguy and YzGyz like this.

03-23-2015, 08:32 AM	#29 (permalink)
Taylortoons Base Member Join Date: Aug 2013 Location: Dallas Posts: 98 Drives: 11 370Z AT PW Rep Power: 12	Cool. Thanks for sharing your experience. I should have my installation complete in the next two weeks. __________________ Top Speed CF Intake, FI Non Res TP, Nismo Exhaust, ONEighty LED, JDM Rear Fog, Kranze II, Michelin Pilot SS, Quaife LSD, 4.08, Whiteline, UpRev

02-20-2015, 01:18 AM	#19 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	you'll definitely get it. simply due to the different material and design - eg. silicone filled main bushing vs Whiteline's solid elastomer construction. the other reasons for the noise relate to the potential pinion angle/universal joint phasing issue. the ear bushing design is also different to oem

02-20-2015, 10:25 AM	#22 (permalink)
L33T Z34 Banned Join Date: Jun 2010 Location: Ahnald, MO Age: 47 Posts: 387 Drives: 09 K51 G C Bw/S 6MT Rep Power: 0	You'll hear the ring 'n pinion spin w/performance oriented bushings. It's a given. This is why OEM use mushy rubber bushings, to quiet NVH.

02-20-2015, 11:48 AM	#24 (permalink)
Charles370 Base Member Join Date: Oct 2013 Location: Long Island Posts: 30 Drives: 2010 370z sport Rep Power: 12	I just didn't know it would make my z sound like it is an f1 car lmao

02-20-2015, 12:20 PM	#26 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 17	Heavier diff fluid helps quiet it down some.

02-20-2015, 12:23 PM	#27 (permalink)
Charles370 Base Member Join Date: Oct 2013 Location: Long Island Posts: 30 Drives: 2010 370z sport Rep Power: 12	yea thats what my mechanic was saying, i got gears installed and im changing the fluid next week after 500 miles.

03-23-2015, 02:20 PM	#30 (permalink)
Presto Base Member Join Date: May 2010 Location: Home Posts: 123 Drives: Car Rep Power: 15	do you guys install the smaller bushing on top or bottom of the diff? i believe that makes a difference in the whine sound.

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