If that's the case then what you have is just the stock 73+ BBP disks with a set of tubular UCA's. Your stock lower control arms will work just fine with a rebuild, if you're doing that then you can add a boxing plate to the bottom of the stock LCA which you can also use to correct any wear or play that has developed in the LCA. Jim Lusk has a nice video on that...
I don't hear about many people replacing the LCA. Is there a reason why this doesnt see as much attention? Whats the reason, in the video, for adding the stiffening metal? I'd assume these can bend/twist under heavy torque situations like road racing or is it just a good idea for improved handling? Just curious about lots of Whys???