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- 1.69 Quarts of M1 Synthetic Gear Oil (GM equivalent 12378261) SEA 75W-90 (Z06 3.42's, other gears may vary slightly)
- 4 oz. of limited slip additive (EQUA TORQUE) or GM part #1052358
- A big 'ole Hex Key, like 1/4" I think it was ..
- Some rags and a fluid oil pump ($5 at pep boys, very useful)"
BTW-you need a 10mm hex key to remove the drain and fill plugs.
The idaho corvette page I just checked said to us 80W90 gear oil. The GM part # equivalent there was 12345977. Here's a link to it. http://www.idavette.net/hib/C5diy/c5diy2.htm
Is there a big difference between the 75 and 80W90 lube?
I just changed my tranny and rear diff fluids to Red Line this past weekend. I am very happy so far.
I don't think you will notice any difference between the 75W-90 and the 80W-90. I like the fact that the limited-slip additive is already in the Red Line.
I'm getting a clunking at low speeds when I turn all the way over to the lock. But it is intermittent. :confused: I'm not going to tackle the rear end this weekend.