I am in the process of doing this as well, on a 1998 suburban.
Airbags are needed to pass an inspection to register a salvaged vehicle.
Can anyone confirm the number of sensors? I have only found the one under the driver seat and the one under the radiator support bracket.
Also, on the previous comment "Control module under drivers seat, the part number is on it and must match !!!"
Does this mean the module must match all the other components? Or must match the original part #? I was going to use a complete system from a donor.