ok i went to leave the house this morning to make a quick stop by the store get in the car start it, fine, but when i goto shift the car in gear the shifter wants to pull back towards park, and will barely stay in drive, it almost pulls right back to neutral. but since i had to make it to the store real quick and its only a couple miles i went ahead and drove the car, and as long as it stayed in drive, the tranny shiffted fine. so whats my probly? is it something with the linkage or something as simple as a centering spring popping off?