74 duster lca bolts/studs?? replace?

Are we talking about the bolts that hold the lower ball joint to the spindle? If so, it's truly a bolt in the sense that it has a head behind the rotor. As soon as they get a turn loose, the whole thing will spin.

If it is stripped or damaged, I think that bolts from mid 80's chryslers will fit. You can't just go down to the hardware store and pick them up as the head is really short and the nut seems to be taller than anything I've ever seen available retail.