I inherited my fathers 06 mustang. It has lots of work done to it as he drag raced it mostly. The transmission is the automatic but built to take on the higher horsepower. I was driving it this morning and accelerating when the transmission disengaged. Acting like neutral (revved up high). I had it towed home. Park keeps the car in place, reverse allows it to move forward or backward, neutral works normal and drive only allows it to move forward. I’m thinking the shift linkage came undone or maybe something with the draft shaft. Does anyone have a helpful direction to look at? I took apart the center console and got the shifter assembly apart. I just can’t see where the linkage goes to. Thanks.