did that same thing with my folks old Dodge 383 cu. Polara. Did it from a roll though. Front U-joint decided to go to the junkyard in the sky. fun rid though. same car that I went to rev it up from under the hood, grab the gear selector instead of the throttle arm. Car went into reverse, across the street it went, up the neighbors drive way until I got it stopped. scary!! they never found out about that though, car went on to be a enduro race champion though. May the car rest in piece(s)