Started dealing with this ugliness yesterday...
Got the bad stuff cut out, cleaned up the inner stuff, and like the drivers side I had to graft the lower part of the inner wheelhouse. Wire wheeled it, a coat of primer and three coats of satin black. Should keep the rust at bay for a while...
Same basic idea as the driver's side...except I had to add a new gas door assembly. Also had to add a smaller section at the very rear which incorporated the tailight area.
Got the main piece hung and tacked somewhat...
Fuel filler bolted right up...
Last section clamped in place, you can see the area at the bottom that Russ mentioned. The angle is different on a K5 than an 8 foot box. Pretty easy fix really.
All fit up, just needs a bunch more full pen tack welds and finish work.
For the bottom, seeing as there is no crease or body line I was able to use some wide vise grips and roll the yellow part up and in. I started a few inches back from the rear wheel opening and just rolled it a little more and more as I went towards the rear. Then I finalized it by tacking the three pieces together. I think it turned out pretty close.
Hard to get a good money shot...but it's damn straight looking down the side of the truck.
i'll spend some more time on it most likely on Wednesday.
Rene