those are the outputs not inputs. both of my output seals were leaking. The dealer replaced them at a cost of $650 including labor, seals and diff oil change. They had to drop the axles and the rear section exhaust. Swapping the seals is not just a in and out job as everything has to line up and the seal has to go in the correct amount. Good luck
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2011 BMW M3 Sedan
Bone Stock
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