You mean the stock auto flexplate with the notches? If so, that's doesn't work. They don't nest together, there used to be pictures from fzmax (I think) but they don't display anymore or I would point you to them. You could trim it to fit, but now that I think about it, if the flexplate doesn't fit behind the factory flywheel without trimming, I bet the sensor wont fit between the back of the block and the inside of the flywheel either.
