My driveway has a taller than average curb. Yesterday when I was backing my car from the street into my driveway in reverse, when I hit the curb I heard like a pop. The car then rolled forward and now doesn't move when I shift into any gear. The car still puts on reverse lights when shifting into reverse. It still went into Auto stop in neutral. The physical shifting of the car still feels normal, the car just doesn't move at all. I checked the shifting linkage under the hood and it seems to move normally. Still have clutch fluid. Anyone have any idea what went out? So these symptoms point to something specific. Any help greatly appreciated.