Cracked frame?

Hey, man, looks nasty, and the new, tighter suspension parts will only make it worse. I don't know if this is a common area for darts, but to fix cracks like that on trucks and jeeps, you need to weld on a fish plate. It's basically a piece of steel the same thickness as the frame section welded over the crack after you weld and grind the crack. You want to be able to spread out the stress away from the cracked area. That is a much tighter area than I am used to repairing, maybe some of the hard-core racers on here have a better solution.