I posted about the pinion seal and now I have doubts, as sudden pressure release occours on opening filler hole. this have a spring in it and it moves up and down on pressing on it. because mine seems solid. I dont see any air holes. I used anti sieze fluid and wire brushed it. Looks like a end cap fitting, so where the holes. Is this a failure point in the differential , blow off through seal, as I have pressure build up and a tight u joint with no road noise. I do have oil loss, wondering if this could be the culprit. No equalization of pressure. Its a 94 pickup truck.
- posted
17 years ago