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Crush Sleeve

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At the differentials, there is one more element that you need to be concerned with. The pinion assembly uses a crush sleeve to preload the bearings in the housing. Wood says you have to apply 200 lb-ft or more to the nut to mess up the crush sleeve, which will lead to bearing and other issues. He says to install the nut with a 15/16-inch thin-wall socket, use a thread locking compound and torque it to 180 lb-ft. You'll be just fine.