All of the items in this section were engineered to work with each other. For example: The bellhousing will not accept a stock 157 tooth stock flywheel, it was made for the 153 tooth flywheel listed on this page. If you need any information on these items please call us at 704-662-6982 or send us an at parts@roushyates.com and we will be glad to help you in any way we can.