From: Walt Fricke, Technical & Rules Committee

Effective April 30, 2020

The inner lower control arm end with stock rubber bushing on the GT3 arms, which is allowed in SPB to attache to the stock Boxster main arm, is no longer available through Porsche.  The busing is subject to wheat, and at some point needs to be replaced, which is done by purchasing the Porsche GT3 part, which comes with the proper busing.  Many PCA classes would allow spherical bearings instead of a compliant rubber bushing, so this development may not affect anyone but SPB.  In any case, the Tarett #LCARE lower control arm rubber end is allowed in SPB, and in any other PCA class where this part is to be replaced.