Cantilever suspension
 

Is anyone using cantilever suspension front or rear? Does anyone know where to pick up the cantilever components such as the pivots and adjustable hard bars?

Not sure what you're talking about. You mean a pushrod suspension? Stuff like the bellcranks and push rods are always custom built for the application but for stuff like the Torrington bearings on the cranks and joints for the rods check out Hoerr Racing Products and Pegasus Auto Racing.

http://www.hrpworld.com/

http://www.pegasusautoracing.com/

FYI fitting this to any sort of sedan car makes no sense.