It’s not really required for this build, it’s strong enough without modification
But to beef it up a little will not hurt
The rear suspension control arms/swing arms are strong enough for a street truck, but decided to beef them up a little. Approximately every 6 inches did a 1-1/2 inch weld on the top and bottom of the swing arms. If you don’t see the heat/color indication on the other side of the metal you probably have a cold weld that can look good but because it doesn’t have good penetration the weld will be weak and not have the strength needed.
Just got the frame back from the sandblasters with out getting any rain on it, that always a good thing. But the weather doesn’t look like it’s going to cooperate to paint the frame outside, so it looks like Ill be painting the forward half and then the aft half in the garage due to lack of room to do it all at once.
Getting close to the point in the build where things are going to be put together in final assembly. Now if the weather will cooperate and I can get some of the little parts cleaned and painted it might start looking like a truck again soon instead of a hole bunch of parts. Enjoy your build