Hey Scotty, I have a 98 mustang 3.8 automatic. Recently my O/D off light has started blinking when I drive my car. The light will not come on if I have the car in 1st or 2nd gear, it comes on when I put the car into drive. Also when going up a hill at a slow speed the car will start shaking a little and I have to press the gas more to get the car to downshift to get up the hill without the car hesitating. Also when I’m in drive and I slow down to a stop the car downshifts roughly with a slight jerk. Any ideas on what this could be? Maybe speed sensor?