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96 Vette Dana 44, what is the size of the pinion nut? I measure 1.3" across the flats, and that appears to be a 33mm, but I cannot find such a beast. Anyone know what size it is really? The pinion seal is leaking and I need to replace it.
Its 1 5/16". You could use a sears 3/4" drive socket but the outer diameter of the socket is too big without grinding it. A 34 mm will work but its loose and will damage the nut if its removed with an impact gun. Harbor Freight has a 3/4 in drive set that has a socket that will fit. The set is 42 bucks.