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Discussion Starter #1
One of our customers had a loud diff in his Q4. I installed a good LSD used unit we had in stock 4k mi. into a 2018 Q4 with over 60k mi. Jet black oil came out, and that was after an oil change around 50K. After swap I dismantled the old diff to inspect the whining/growl it had. R&P had a bad pattern( hard to say if set up was bad or the LSD clutch material contaminating the oil caused it), bearings seemed fine. The clutch pack definitely had wear, I think it was stacked wrong from the get go. One clutch was against the sun gear cup directly. Swapping out third member is not to bad overall.
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Larry do you have any more of the LSD's available?
 

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Discussion Starter #3
I am out currently, but a few parts cars coming up soon. Maybe check back in a couple weeks.

Thanks
 
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