These are the basic groups of interchange.
92-95 OBDI Air density induction
96-99 OBDII mass air flow (MAF)
00-04 redesigned heads with rollerized valve train & induction & other changes
rear drive N*'* are quite different from the front drive engines.
10 fasteners on the intake cover of the 92-95'
4 fasteners on the intake cover of the 96-99'
Coil over plugs on the 00-04' (no plug wires)