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Old 02-12-2024, 02:41 AM   #1
Tpo
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Eaton limited slip differential

So if Iím to believe the sticker behind my gas tank, my 60 half ton 2WD has a limited slip. After an hour of reading old threads I think I actually know less than I did before I started. Do I have clutches in my carrier that need a posi additive? Can I run old school 80/90 weight gear oil, with the posi additive, and be OK? Does it need to be hypoid oil? Iíve yet to drive it so I donít know what kinda shape the rear end is in, those clutches may be totally shagged by now.
Thanks!
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Old 02-12-2024, 11:49 AM   #2
SkinnyG
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Re: Eaton limited slip differential

You CAN run a LSD gear oil in an open diff with no problems whatsoever.

You NEED an LSD gear oil in a friction-type LSD.

You do NOT want an LSD gear oil in a Helical/Torsen diff.

Cheers!
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Old 02-12-2024, 12:41 PM   #3
dmb
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Re: Eaton limited slip differential

When I worked for Chevrolet , we had an additive that was made from whale oil that we used in the limited slip rears that had clutches in it, but that went out with the whales.
I am sure there is an additive that you can use now.
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Old 02-12-2024, 07:48 PM   #4
Tpo
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Re: Eaton limited slip differential

Dmb, I saw that last night while reading through threads. Whales had posi!
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Old 02-12-2024, 08:06 PM   #5
Getter-Done
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Re: Eaton limited slip differential

This is what I have seen people use with no issues.

Link: https://shop.advanceautoparts.com/p/...n%20Treatments
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