Depends on the Ranger's front suspension:
For the 4WD and "Sport" models with the torsion bar springs, then yes, the OEM Explorer mounts and brackets are a perfect fit.
For the coil spring Rangers, you'll need to remove the spacer under the left OEM V6 mount and use custom mounting plates - oh, and drill a new alignment hole for the pin on the bottom of the mount.
It sucks, you've got to drop the front suspension and get the coils out to access the nuts that retain the Ranger mounts.