On the panel just above the running board. Get some 18 gauge steel larger than what you need to replace the rusted metal. Using a steel pipe, two "C" clamps and your work bench. Clamp the sheet steel under the pipe with the clamps to the work bench.
Now roll your steel a little at a time to resemble the rusted part of the cab. At the place where the metal has a tighter roll, use a smaller pipe or wire and finish the bend.
The reason for the over sized sheet of steel is for the leverage you are going to need to bend the steel.
Then cut it to the lenght and dept that you will need to replace the rusted panel. Now, using a sharpie, mark the rusted part using your new metal as a templet. Cut out the rusted metal and fit the new piece. Using a couple of welding magnets to hold the piece in place, tack weld a few spots. Then you can remove the magnets and finish tack welding your new metal in place.
On the Fender do the same thing. But First make your sharp bend at the bottom of the fender where it meets the running board.
Now when your are ready to roll your bend, cut a few small "V" cuts. Then roll your fender patch just as before with the pipe and clamps.
Use your new metal as a templet and cut out the rusted metal and tack weld in the new piece.
Grind off your welds and fill with body filler and finish your prep.
Frank
