[Cal Metal]

Regardless of what you use, you will need to check the bellhousing alignment for straightness. There is simply no way around this. I am not aware--outside of an original Ford bellhousing which is not "scatterproof"-- of any other bellhousing manufacturer. You simply need to break out the dial indicators and go to work. If you are looking for the procedure as to how to do this, email me and I will send them to you.