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Scotty's 52 F3 · 06-19-2025, 10:00 AM

Sounds like you got it figured out Gary so maybe you already know this. Throwing it out there anyway.

Some of the gear lubes on the store shelves will have the limited slip additive already added but it will say so on the label. If you filled with oil that does not contain the additive you can buy just the additive and save draining your fresh oil. The additive is pretty smelly stuff.

Even after you add it, it takes a few miles to get soaked into the clutches and start working.

They ARE nice to have over an open diff. And not quite as harsh as a locker.

06-19-2025, 10:00 AM	#20
Scotty's 52 F3 Senior Member Join Date: Dec 2015 Location: Marana, AZ. Posts: 452	Re: 9" rear in a jailbar truck Sounds like you got it figured out Gary so maybe you already know this. Throwing it out there anyway. Some of the gear lubes on the store shelves will have the limited slip additive already added but it will say so on the label. If you filled with oil that does not contain the additive you can buy just the additive and save draining your fresh oil. The additive is pretty smelly stuff. Even after you add it, it takes a few miles to get soaked into the clutches and start working. They ARE nice to have over an open diff. And not quite as harsh as a locker.