However, without seeing your specific engine (a 2.2L, 4.3L V6, or a 4.8L V8 are possibilities for that year), pinpointing the *exact* location is impossible. It's usually relatively easy to spot once you're underneath the vehicle looking at the oil pan; it's a bolt that's typically a bit larger than other bolts in the area.
Always consult your owner's manual for a diagram and specific instructions. The manual will show you exactly where the bolt is located for your specific engine.