Ok I am putting an automatic in my 99 TJ. I have an opportunity to get a AMC Turbo 400 for 75 bones and want to know how important is the crankshaft positioning sensor? I know you can get the kit to move it to your harmonic balancer but thats an additional 300 so really not worth it I would just get a 99 tranny, but I know that the 400 is an awesome tranmission...