Andy - the over-riders were reintroduced with the LM62's.
So from 97 to 02 as you said it was bumpers only.
and the lower valance was the vertical panel below the bumper.
What's not absolutely clear though is the positioning of the reverse and fog warner. They appear to have been placed above the bumper, but some cars have them below in that period. It may have been an owner mod though.
