GTS-4 Rear Diff Whine

[pmurr181]

Hey Guys,

So i have a R32-GTS-4 that had a two way diff in it which wasn't fun for my daily driver. I bought a second hand oem rear diff of here and now it whines like crazy. Wondering what my options are for getting rebuild kits?

Or what route i should take to stop the whining. I have already put redline fluids in the diff and its still whines like crazy only on throttle. The car never did this until i replaced the diff yesterday.

The symptoms include only whine on light throttle and above 60km

Any help appreciated.

Paul

[Skym]

Probably the bearings inside diffhead (output shaft's?) or someone shimmed it too much (happens on Viscous LSD diffheads when shimmed too much). From what I understand, shimming is to adjust the backlash. If there's no clunk noise when backing off throttle (backlash), then it's probably been shimmed too much (more than one shim). As far as I know, the LSD part is unserviceable.

Shims, gasket for rear diffhead cover, bearings, etc should be able to be bought from Nissan Dealership parts department or someone that sells factory parts.

[pmurr181]

Considering that the oem diff I got had the factory seal still on the diff cover. I doubt it was shimmed. Any other causes of this whine? Bad diff ?

[Voodoo_ChildR32]

Bearings will whine. Had the same issue on a Nissan Titan. The bearings were adjustable, not sure about an r32 though, never opened one up.


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