This is a new CNC machined rear miter box output shaft for a 2 wheel drive Rokon motorcycle. This is the shaft that connects to the override clutch inside the main frame tube. This works with the locked override that I also have available. The shaft is 4 9/16 inches long. 4 new 3/16 inch diameter split pins are included. This will not work in a “Plunger” transmission or a front miter box. The A1138 is no longer supplied with a snap ring or snap ring groove. an A1182 #108 miter box spacer can be used to replace the spacer and snap ring if required.