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Drbrown · 10-03-2016, 07:21 PM

Lots of opinions/recommendations here. "Search" rear end gear oil.

Personally I use StaLube 140w even tho I'm in a cooler climate. Could use lower viscosity (i.e. 90w) but it may increase gasket/seal leakage if you have such. Fill to plug level.

10-03-2016, 07:21 PM	#2
Drbrown Senior Member Join Date: Oct 2013 Location: Glens Falls NY Posts: 1,355	Re: Oil in 9'' rear end Lots of opinions/recommendations here. "Search" rear end gear oil. Personally I use StaLube 140w even tho I'm in a cooler climate. Could use lower viscosity (i.e. 90w) but it may increase gasket/seal leakage if you have such. Fill to plug level.