Unacceptable: tubular upper control arms with no bump stop pads.

I didn't buy the arms. I'm helping a friend that bought them.
I bought these UCA's, along with several other parts from PST back in January to go along with the 5.9L stroker build I'm doing at Greg's shop, since we were dropping the K frame anyway. I have a full assortment of suspension pieces from PST on my Coronet, including tubular UCA's, and I've been very happy with their product and customer support. The UCA's contact the bump stop on the Coronet.
So I purchased these UCA's for the Dart based on prior experience. PST's website makes no note of the bump stop issue. There is a note warning readers that 1973 and up disc brake spindles must be used for these UCA's. They could have added the bump stop clearance as a note. In fact, they could make more money by fabbing a bolt-in bump stop relocation bracket and selling it as a recommended part add-on for hobbyists that don't weld.
It's not the fabbing that's the irritant here, Greg can weld and has fabbed countless brackets for his cars and mine. It's because the vendor chose not to disclose and the purchaser has to find out during the install.