We have been working hard to bring back the Delkron FXR transmission and primary cases. By using a local casting company we are able to get the molds back up and running. Using raw American 356 aluminum heat treated to T-6 this case has the look and strength of true performance. Using state of the art computer designed we are able to hold exact tolerance. The threads are formed which is 20% stronger then cut threads. With all the pins and bearings installed this case comes ready for you to slide in your gears and roll.