If stubborn sprockets mean that the DJD driver cannot be adequately held to unthread the sprocket...
then, this Workshop tool may be required.

CNC Made from steel.

Use as follows;

1. Insert the tool securely into a bench vice.
2. Remove the driver body from the hub assembly.
3. Remove the 3 Pawls and spring.
4. Insert the Pawl area of the driver body into the Bench tool.
5. Use required chainwhip to remove the now securely held DJD driver body.