Here's a picture of an OEM flywheel. It looks like it has a bearing in the center that holds the end of the transmission input shaft in place instead of using a pilot bearing. I don't see anything equivalent with the Center Force flywheel.If your transmission input shaft does not engage the pilot bearing, what is supporting the end of the input shaft? Is it just free floating? I found a picture of the original flywheel and it looks like it has a bearing that supports the end of the input shaft. Can you check your original flywheel to see if it supported the end of the input shaft?