Removing the cylinder from the door is half the battle. After that, it is relatively easy. I just did it this past weekend.
1 Remove cylinder
2 Remove c clip and remove lock pawl
3 Remove centering spring
4 Pull center of cylinder out of housing
5 Insert key
6 Use die grinder to smooth off all tumblers that stick out.
7 Re-insert cylinder in housing and make sure it turns with key.
8.Re-assemble in reverse order.
92 YJ - 4.0 - 5spd - 3.5" BDS -5/8" shackles - TJ flares - KOZ cage - WARN sliders - 33x12.50 BFG M/Ts - AA sye (with a woody) - 8.8- 4.11s - Twin ARBs!!