how much lube in diff
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
Many who use aftermarket oil brands that claim you don't need friction modifier end up with chatter or whine that goes away when they subsequently add either GM addtive or an aftermarket posi additive...
I used 4oz of GM posi - additive( put it in first to ensure it is all there) then added Mobil 1 75W90 until full ( about 1.5 qts)
I used 4oz of GM posi - additive( put it in first to ensure it is all there) then added Mobil 1 75W90 until full ( about 1.5 qts)
