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Quote:
Originally Posted by Ron in Quincy
The Castle Nut (a Special hardened 5/8-18 so it will take at least 100 lbs. torque without damaging the axel threads) does not use a hardened washer but torques directly to the end of the early 28 drum. If you install a washer there is not enough room when the drum is torqued to install the cotter key.
Ron
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Ron,...I have an NOS rear drum(which I'm sure carried the "AR" part number.
It has the late style hub, lug studs and has the counter bore for the gasket
at the axle nut..