Does anyone know if the rear lower control arm (LCA) inner bushing where you adjust camber, needs to be the factory OE (or Mazdaspeed) which supposedly is really a pillowball encased in a rubber bushing to allow movement of the arm on two axes due to trailing arm configuration ?
(see post: https://www.rx7club.com/showpost.php...25&postcount=2)

PowerFlex has it (item#8), but is it engineered as described above ?

http://store.powerflexusa.com/mazda-...hings-p71.aspx

Mazdaspeed:
F128-28-460 C BUSHING, LOWER CONTROL ARM (REAR) (2)
Notes: 40 STIFFER THAN STOCK. LOWER CONTROL ARM, INNER BUSHING.