left wheel wobbles on dyno

[Mach1Junkie]

Hey guys, haven't posted in a while things have been a little crazy at home.
I finally got my Mach1 dyno tuned by somebody who really knows what he is doing (Frank Soldridge of PSI ). The car laid down just under 600whp when it ran outta fuel.
Anyway the driver side rear wheel was wobbling. They told me not to worry about it as they have seen it in other cars and I probably hit a pothole or something and bent the axle. I hardly drive the car let alone anywhere where i'd find a pothole plus I have moser axles. It is possible that the guy who put my car together hit a pothole I guess, would a 31 spline moser axle really bend from a pot hole?
Do you guys know of any other reason that one wheel would wobble on the dyno?

Thanks guys hope you all had a merry Christmas!