[V8COOPMAN]

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The tapered end of the axle (spindle?) should be CLEAN & DRY. No form of lubricant or "Never Seize" should ever be used on a tapered-fit application. It is intended to function just like a "Morse" taper does. This is one reason that the big drum-retention NUT really needs to be so tight. That perfect, pressed-together taper is what actually forms the bond which allows the transmission of torque....the slotted key DOES NOT transfer that driving torque. So, DRY and TIGHT it is! DD