Pro Series Single Disk for the Ford 4R70W Transmission Our Pro Performance Series torque converter is a completely custom torque converter. They are made to fit your transmission, but will look nothing like the OE counterpart. They will have our billet front for incredible strength. We build it in a single disk or multi disk, so whatever power levels you are at, we can build you a torque converter to handle it. Each Pro Series converter is hand selected and built one at a time to meet your specific requirements. We don't build it till you order it!