Direct Drive is the only way to go for the cover. The old way was to mill the stock cover and ethire weld on or epoxy on an extension ring. They have a tendency to leak if not done right. Direct Drive makes 100% bran new cast covers. So there is no weld or epoxy to fail. The cover is the expensive part, the actual lockup that bolts on top of the pressure plate is 100 bucks
Direct Drive LINK
Here is my direct drive cover and lockup.