12-19-2020, 03:44 PM | #1 |
Drives: 2018 camaro 2 ss Join Date: Feb 2018
Location: FL
Posts: 51
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Rear diff
I thought if you develop the dreaded groan in rear diff, they replace the gear oil with a special gear oil. Does anybody know what the number of the gear oil is?
THANKS |
12-19-2020, 08:57 PM | #2 |
Long hauler
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Quick search shows TSB #17-NA-287
From my understanding, they use the factory defined fluid from the owners manual. So it's just a drain and refill I guess? Manual shows "Rear Differential Fluid 75W-90 Limited Slip (GM Part No. 88900401) Add Limited Slip Additive GM Part No. (88900330)"
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12-21-2020, 01:19 PM | #3 |
TEXIT
Drives: 2019 ZL1 M6 Join Date: Aug 2018
Location: Republic of Texas
Posts: 160
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Royal Purple Max Gear 75W-90 Synthetic Gear Oil is what I use and no groan.
https://royalpurpledirect.com/max-ge...etic-gear-oil/ |
12-21-2020, 07:46 PM | #4 |
Drives: Duramax, 2018 Camaro SS 1LE Join Date: Nov 2020
Location: CONvid Commieforina.. soon to be in ID
Posts: 98
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I use Red Line GL-5 Gear Oil (57905) No noises here.
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If it ain't buckin, chirpin & makin all kinds of bad noises.... then I ain't happy!
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