SQUARE BASE LOWER CONTROL/UPPER CONTROL ARM BUMP STOPS oem

I am having the same problem with the LCA and the UCA bump stops. The universals only have a stud that goes into the rubber, so it eventually turns the rubber as you tighten it. The OEM Bump stops have a square base, just like a bumper bolt, so you can torque it in there correctly. PST suspension used to make them, but no longer. I cannot find the OEM ones with the square base anywhere.
Need the larger ones for LCAs and the little ones for the UCAs.

What other suspension companies out there specialize in Mopar?