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Re: D44 swap....and D36 diagnosis

Subject: Re: D44 swap....and D36 diagnosis
by dan0617 on 2010/2/12 23:39:08

Quote:

jhammons01 wrote:
Most Differential (Dana 36/44) experts say to use 80/90w Gear oil and TWO bottles of additive.

So you've put a quart and half in there and how much additive??

The question that would bother me is this. if the thing takes a quart and a half and GM says ONE bottle of additive....then you've put a lube in there that has the additive......hypothetically you should have 1.5 bottle of additive........

So whether you buy into the now day experts say or what GM says.....you are halfway in the middle of both.

Listen, and if you hear the clicking from the Differential, you'll have your answer.

Agreed. I searched the internet pretty heavy with no definitive answer. Many say to add a bottle of additive anyway, many say not to with the Lucas 80W90 gear oil. The bottle says no additive needed for limiited slip differentials and it is GL5 compliant. I'll drive it and listen for any noise at all out of the rear.

My Chilton's says to use 3.75 pints. Mine only took about 1.5 quarts, which is 3 pints. That is after I ran it, put it down on the level, and topped it off. I'm thinking it's because the adapter plate I used takes up some fluid space in the rear.

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