I finally checked my actual runout - one axle barely had .005", the drum (mounted normally, measured at the edge of the friction surface) had .038". The other axle indicated .012" – at that point I figured "close enough for now" and went and ordered some Challenger-spec drums from O'Reilly's. Hopefully when I put them on tonight or tomorrow that'll be the end of this mystery (otherwise Dr. Diff's getting more of my money for axles)
1967 Dodge Coronet Deluxe station wagon
1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s
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