Depends which 18x10s you have.
The 'older' style won't bolt right on, you'll need spacers. Roush's small center doesn't allow the dust caps on the Explorers to fit right. I tired to swap over mine from one of my cars just to see what it would look like. I'm told (can't say for sure), the newer style rims (05+ cars) has a slightly larger center. Just be aware the offset is different on the newer style wheel.