I've had a TKO 600 in My Malibu for a few years. It has just started to not want to go in any of the gears on the front of the shifter so no 1st,3rd or 5th. It wont go in even if the engine isn't running. Sometimes if you pat the gas and jerk the car in 2nd or 4th it will free up the shifter and it will go fine. I'll probably pull it out tommorow but I was just wandering if anyone has had a problem like this.