IN MY 006 IMPALA SS THE TRANSMISSION IS STARTING TO SLIP. THE CAR IS AROUND 83,000 MILES WHEN I FIRST NOTICED THIS ISSUE, AND THE VEHICLE WASN'T DOING ANY HARD ACCELERATION (AROUND 20-25 MILES AN HOUR SHIFTING FROM FIRST TO SECOND GEAR). I AM WORRIED THAT I WILL HAVE TO PAY TO GET IT REPLACED.