If stubborn spockets mean that the DJD driver cannot be adequately held then this Workshop tool may be required.CNC Made from steel.Use as follows;Insert the tool securely into a bench vice.Remove the driver body from the hub assembly.Remove the 3 Pawls and spring.Insert the Pawl area of the driver body into the Bench tool.Use required chainwhip to remove the now securely held DJD driver body.