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Posted

Hey guys, I've had a horrific whine coming from (what I think is) my diff for some time now. I plan to pull it out soon and am wondering if anyone has any recommendations as to where I should take it in Adelaide? I don't feel confident enough to pull it apart and recalibrate it myself, and I don't really want to brick a 1k LSD.

 

Any help is much appreciated.

Thanks, Tim.

Posted

I'm not sure if I was getting ripped but I talked to a recommended diff shop here in Brisbane and they said that a rebuild for the whining r180 I have in my 240z could be $1000 or more depending on what the issue was exactly, so a 1k LSD mightn't be a bad option... but then again you are still buying another 2nd hand diff.

Posted

Z cars are prone to diff whine due to the less than ideal isolation incorporated in the mounting system, and proximity of the diff to your ear.

 

The whining is a product of bearing wear and/or gearset wear/mesh. Replacement of bearings and resetting of the ring/pinion mesh is the cheaper solution. While gearset replacement is the more expensive fix. You can inspect the state of the gearset by removing the rear cover and inspecting the gear teeth. In the most extreme cases of wear, you will find feathering on the 'trailing' edge of the tooth that you can actually pick up with a finger nail. Although he's not in your city, I know Jeff at Jack McNamara differentials here in Melbourne has quite a good collection of brand new long pinion R180 gear sets, as well as some good second hand ones.

 

He may be a good source of a gear set if you need it....hopefully it's just bearings and mesh though.

 

CHeers

 

 

Jamo

Posted

Thanks guys. When it gets to the top of my list of things to do I'll make sure to update the thread with any relevant progress.

 

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