Front suspension issue

I recommend KROIL for soaking the UBJ to get them loose. Others here swear by PB Blaster!. Even with chemical assistance, it takes a LOT of leverage to get these guys loose. I use a 4 ft. long cheater bar over the breaker bar. The 68 UCA has a smaller ball joint than the 73.

The later ball joint is shared with the B/E & F/M/J bodies. That may have something to do with the later stuff being cheapre.