1969 Dart Street/Strip (Re)Build
Ah-there it is. Weird.
Anyway; are you running a spool or clutch type LS/SG unit? Does your car track straight or does it try to "push"? It seems to me that if one wheel was worn that bad and the other side is significantly less worn, you should notice the manifestation in other ways...especially around corners or when you were under heavy acceleration.
I've driven a car with a bent axle housing before...it was nearly imperceptible to the eye, but the cornering and heavy acceleration was...exciting...in a bad way...made you feel like you were trying to drive into the guardrail or off the road.