Man, I have bad news for you. Those parts were made by CAP. They were bought out by QA1 for their designs, which included the tubular K frame, tubular LCA’s, and adjustable strut rods that QA1 now sells.
But here’s the deal, CAP had terrible quality control and even worse welding. They had multiple failures of their parts, a couple of which resulted in accidents. I had a set of their tubular lower control arms on my Challenger, the welds cracked. The UCA design they used wasn’t great, and QA1 substantially changed the design for their UCA’s.
I wouldn’t run any CAP made parts that have a weld. Sorry.
