The neutral safety switch is in the steering column. It is a round plate that gets turned and has holes in it that have to line up for it to engage or not(actually the whole bottom portion of the column turns below the steering wheel). The stock shifter has linkage that comes off the side of the tranny and runs all the way up into the engine bay and connects to the steering column and it turns the plate. You may be able to just leave that linkage hooked up with your new shifter. If you didnt remove any linkage that comes off the tranny when you put your new shifter in, then your stock switch should still be working. And before you say well my car is floor shift so it wont have this, trust me it does. Its a pretty wierd set up. Next time you put your car in gear watch the area on your column where the column shifter would be. It will rotate. I never even noticed this until I went to figure out why my reverse lights werent workingand someone told me what to look for, as they are run off the same linkage.