Charlie if you have a manual its on page 17-55 last line.
If not
1. Open deck lid and remove lock assembly and lock extension.
2. Remove the sleeve assembly retaining nut, lock washer,spacer and sleeve and cylinder.
3. To remove the lock cylinderfrom the sleeve assembly, TURN THE KEY IN THE CYLINDER 1/8 TURN CLOCKWISE FROM THE LOCKED POSITION, DEPRESS THE CYLINDER RETAINING PIN, AND REMOVE THE KEY AND CYLINDER.
Hope it helps.
nassi