because yours will be an auto, you will not have to rebuild the tranny. the common problem with the auto is that some times the tranmission mount will break. this will cause a slight jerk when the gears shift up or down on its own. ive had my tranny mount replaced (200 bucks) but it broke again. It's not worth having it fixed. Other than that, the car is flawless. www.legendtuner.com will answer your legend troubles with detailed tutorials.