This one has to do with the Neutral Safety switch on the shifter. I had a B&M Quicksilver ratchet shifter on my car and then it started having problems moving freely. So I decided I would rather buy a B&M Megashifter to solve the problem. I switched the shifters out and wired up the neutral safety and reverse light switches. There is one problem with the neutral safety switch. When the shifter is in park and you turn the keys to start the car, it never lets the starter shut off. I did some experiments and as long as there is a connection (tab is pressed) the starter is going. I used my fingers to press the tab while it was off of the shifter and she fired up fine, but the starter wouldn't shut off until I let go of the tab.