I've looked at quite a few posts and can't find what I'm looking for. I went to leave work today and my car wouldn't shift into reverse. Never had a problem since I've gotten the car. It acts like it is going into 6th instead. I've tried shifting into 1st then reverse, and pretty much every other gear as well to try and reengage reverse. What am I missing here? Or a potential bad part? I did put a short shifter in over 3months ago, but don"t think that's it either. Car drives fine in every other gear.