I remember when I delivered newspapers as a kid after school, (it was an afternoon paper) my mom used to drive me when the snow was too high for my bike.We were going up this steep hill (in a 1973 rear wheel drive Buick Regal)and sure enough,we got stuck almost at the top.Well,she tried to "rock" the car to get it moving again. The problem was she didnt wait until the wheels had totally stopped spinning before she changed gears.Then it happened,she was spinning in drive,and quickly went into reverse....BAM!! is all I remember hearing,and as a 12 year old kid I knew that wasnt good! Turns out mom had cracked the transmission housing,along with internal destruction.That was the end of that Turbo transmission.