Oil in 9'' rear end

[ed mazzola]

Oil to use in rear end an how much 9' rear.


Ed

 

[Drbrown]

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.

 

[paul2748]

90 weight should do the trick in a later (57 up) 9 inch rear. Fill to fill hole.

 

[ed mazzola]

Do i use any synthetic or just use 90w gear lube.

Thanks