Originally Posted by
thefan
To get the diffs to seal you have to file the case where the screw goes in because it leaves a slight mound in the plastic once done the diff wont leak and you dont need any sealant apart from the gasket of course
This will work for newer diffs but as the diff ages the screws must be tightened more to put enough pressure on the gasket to seal properly. if you put too much torque on the screws to get the gasket to seal then the diff binds. I am about to install my third diff case because of this problem. I think I'm actually going to go with the ball diff instead. I'm tired changing diff oils and cases.