There is obviously the 2 seals on either side where the CV enters the diff, then there is the one for the driveshaft to connect to the pinion. I'm not sure if there is any other entry points, such as a speed sensor hole or perhaps something for the 2/4wd mechanism, but I would check those out regardless, and you already stated you looked at the breather line.
As far as replacing those 3 main seals, likely all you would need is the seals themselves, but of course while it's apart you'd want to inspect the surface the seal rides on, whether it be the CV or driveshaft. If they are damaged then the new seals won't last either.
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As far as replacing those 3 main seals, likely all you would need is the seals themselves, but of course while it's apart you'd want to inspect the surface the seal rides on, whether it be the CV or driveshaft. If they are damaged then the new seals won't last either.
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