rocker panel mounted to what...

The metal that my rocker panels screw onto is all rotted out and rusted. Is this "part" replaceable? I'm not sure what it is called if I wanted to order a couple. My 1993 is in excellent shape outside and in, just don't look underneath, so I would hate to call it quits. My fenderwells are rotting out too but I have been using Eastwood's metal filler on those.

The metal that my rocker panels screw onto is all rotted out and rusted. Is this "part" replaceable? I'm not sure what it is called if I wanted to order a couple. My 1993 is in excellent shape outside and in, just don't look underneath, so I would hate to call it quits. My fenderwells are rotting out too but I have been using Eastwood's metal filler on those.

If you know Chip Foose it's replaceable. Other than that, I don't think so (you're talking about the main floor of the car, right?).

If you want a real do-it-yourself project, maybe this page will give you some ideas:

http://www.hrps.demon.nl/jwbus/rocker.htm

If the outside rocker panel screws onto the floorpan, then yes i suppose it would be the floorpan. I have the Limited Lesabre, where the "rocker" area is like a curved lip instead of the flat surface you see on the Customs.