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How do you top off / fill the differential on a 1996 Chevy Caprice? Can it be done without taking the cover off and changing the gasket? Any gotchas to watch out for?

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up vote 2 down vote accepted

There are two methods I use.One is to attach a piece of hose to the pointed tip of the gear oil container and stick the other end in the differential.Then squeeze the bottle.The other method is to use a suction gun that looks like a big metal hypodermic syringe.You suck the oil in then push in the plunger and squirt the oil into the fill hole.

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