GMC 1995 Safari Owner's Manual page 263

Vehicle Identification Number (VIA/)
This is the legal identifier for your vehicle. It appears on a plate in the front
comer of the instrument panel, on the driver's side.
You
can see it if you
look through the windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification and Service Parts labels and the
certificates of title and registration.
Engine ldentification
The eighth character in your VIN is the engine code. This code will help
you identify your engine, specifications, and replacement parts.