Camshaft Position Synchronizer: Notes
CAUTION:
Synchro Positioner (303-589) for 3.0L or Synchro Positioner (303-630) for 3.8L, 4.2 and 5.0L is required to properly install synchronizer. See Figure or Figure.
Failure to use synchro positioner during installation will cause fuel injection to be out of time and may cause engine damage.