sheet metal identification

The bottom of my new cab corner is attached to this part. I visited one of the local body shops in an effort to find out the name of the part and to possibly order it. There was a difference of opinion on which part it was. The photos in the body shop's book were as ambiguous as the internet photos. They did not have any part called an inner rocker panel. Have any of you installed this part on your truck? The two parts that they were in disagreement on were:
<table border="0" cellpadding="5" cellspacing="0"><tbody><tr><td colspan="2" align="left" valign="middle"> 1987-1996 Rocker Panel (Super Cab) LH </td></tr> <tr><td colspan="2" align="left" valign="middle">
</td></tr> <tr> <td rowspan="5" align="center" valign="top">
</td></tr></tbody></table><table border="0" cellpadding="5" cellspacing="0"><tbody><tr><td colspan="2" align="left" valign="middle"> 1987-1996 Cab Floor Outer Section (w/ Weather Strip Channel) LH </td></tr> <tr><td colspan="2" align="left" valign="middle">
</td></tr> <tr> <td rowspan="5" align="center" valign="top">
</td></tr></tbody></table>Does any body know which (if any) of these two parts is what I need? These particular photos were taken from ccgtruck.com.
Thanks,
Dave Roderick
Try here: LMC Truck Parts - Page 24 item # 13 (49-9122) is the rocker panel.
and here: LMC Truck Parts - Page 25 item # 3 (49-8822) is the floor panel.
The rocker panel is the piece under the door all the way to the back of the cab corner (the part you see when you open the door and look down that is not covered by carpet), the floor panel goes inside of the rocker panel (from outside to inside of truck) and makes the floor of the cab. The LMC links above show where they go in relation to the cab. Hope this helps.
I have also used the insert image icon to insert the image from photo bucket. When I preview the post it looks large enough and detailed enough.
If you can view the image this is what I am looking for. This is a 1995 F350 extended cab. This is the part that the bottom of the cab corner attaches to. the two guys at the body shop indicated that one of the parts I pictured in my first post had this section. The length of the rocker panel is from the front of the door opening to the back of the cab but the picture does not look like it has the same profile as the area I have indicated with the arrow.

This is the photo of the F350 extended cab truck with the old cab corner removed. The ledge that the bottom of the cab corner was attached to is corroded and needs to be replaced.







