I had my car taken to a towing company to have it transported to Florida. When I backed the car out of my driveway it slipped a little in reverse then engaged fully. The Transport company called me four days later and stated that they could not get the car to go into reverse. When you start the car and put into reverse the car does nothing. In 3 rd. gear the car goes forward. In park with the car running it tries to lerch forward. When you shut the car off and put it in nutral you can push the car forward but you can't push it backwards. The car was 3 qts. low on fluid. I do race the car about five times a year. Do you think the tow company did something to the car or was it just the transmissions time. The car is a 66 Mustang witha 302.