is a 2000 Mercury Mariner an AWD >?
Either AWD or 2WD those were the only options.
AWD vehicles usually have a badge on them on the rear cargo door. It is unlikely it was taken off but if you look under the vehicle you should see a gearbox powering the rear wheels up front by the standard FWD gearbox along with a drive shaft to the rear wheels if it is an AWD vehicle.
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