The Ignition key cylinder has security bolts that are hard to remove. I believe the ignition cylinder security bolts are the same across the Nissan 300zx (Z32), Nissan 240SX (S13), Nissan Pathfinder (R50) and Nissan Maxima. It may be the same for other nissan of the same era.
Thank you to those who helped:
Gustav R.
Jim M.
Ace G.
Kevin N.
Post time: Jul-14-2017