burned out my vxl motor?

[Urgeoner]

Hey, I was at a parking lot today just bashing w/my rustler, and on the last jump it landed hard on the rear (motor side) and now the motor won't work. The speed control still sends a signal but the motor does not run at all. I took it apart at home and nothing is broken inside the motor can and the armature is in one whole piece.

When I spin the motor shaft by hand, it spins very freely, unlike my castle motor that has notchy resistance if spun by hand. Is the motor broken somehow?