I did repair on a buddies rig over the weekend, I thought I'd share some pics. I'm sure you've seen many repair jobs utilizing the ORD patch panel, on this post I'll show how to save a couple bucks. Here's the tools you need to get started, notice how the hammer or sledge isn't on the list. (Keep it in your tool box) 
Hand grinder
MIG
Torches
1/2" impact
Hand Drill, 1/2"-9/16" drills
First, find a frame section with a healthy steering box area. Cut and clean steering box section, prepare it for welding.
(Find a 1 ton frame section, they're thicker)
Notice how I added 9/16" holes for plug welding.
Next, repair frame rail, weld any cracks. Then grind them flush, so the new frame section fits well.
Now, bolt the new section to the old section, don't worry if there's a huge gap between the 2 sections.
By adding heat to each corner, and hitting the bolts with an 1/2" impact, you'll notice the the patch will fit perfectly over the exhisting frame section.
Do that until you get a flush fit.
Weld around the outside of the patch, then plug weld the 9/16" holes.
After welding, cooling, you are now ready for steering box install.

Hand grinder
MIG
Torches
1/2" impact
Hand Drill, 1/2"-9/16" drills
First, find a frame section with a healthy steering box area. Cut and clean steering box section, prepare it for welding.
(Find a 1 ton frame section, they're thicker)
Notice how I added 9/16" holes for plug welding.
Next, repair frame rail, weld any cracks. Then grind them flush, so the new frame section fits well.
Now, bolt the new section to the old section, don't worry if there's a huge gap between the 2 sections.
By adding heat to each corner, and hitting the bolts with an 1/2" impact, you'll notice the the patch will fit perfectly over the exhisting frame section.
Do that until you get a flush fit.
Weld around the outside of the patch, then plug weld the 9/16" holes.
After welding, cooling, you are now ready for steering box install.