I recently completed swapping a four speed manual transmission into my originally automatic-equipped 240Z. I got much of the info to plan this conversion from this site, but found that there was no one thread or article that contained all the information that I needed. So to give back some to the group that has helped me, I decided to try to document the whole process in one place. Disclaimer: While the basic process, theory and parts requirements should be valid for any S30, the exact details o