Looking for a 73+ V8 K-member

@AJ/FormS Yeah, it's out of the car, actually it's one I got off the internet to replace the '70 /6 frame that is in the car now (going from /6 to 340). I already cleaned and media blasted it and did a lot of the welding of the seams before I noticed the pivot hole was tweaked and the metal around it cracked.
You can order the reinforcement parts from from Firm Feel if you're a weldin' type, which it sounds like you are. If the frame is only cracked but the tube isn't broken loose, drill those cracks, weld em up, and go! When they're broken loose, there's a little more fixturing and fixing involved. The kit from Firm Feel has large washers that go over the tube and spread the load out considerably.