Well a bad axle wouldn't cause the motor to move like that. A bad axle could make a clicking noise when it's turned and moving like you said. It's hard to diagnose a sound without being there to hear it.
__________________
2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget