So this morning i got up early to wash n wax my impala, got it ready for a cruise. i was at the bottom of my driveway when i realized i forgot something. i popped it into reverse, tapped the gas and heard a god awful screech. the engine stalled, and my car started to roll forward. now if i out it into park, the car still rolls forward.. my question is, were do i go from here?! im sure that trans is gunna need to be replaced, is that my only option?