The SPC GM full-size bolt-in ball joint plate is a Pro Series component that completes adjustable control arms when used with OE-style bolt-in full-size GM ball joints (part #94004 sold separately). The plate is flat at 0° and provides the correct interface for the specified bolt-in joint, simplifying assembly of SPC adjustable arms using full-size GM hardware.
SPC Performance GM Full Size Control Arm Ball Joint Plate (Bolt-In)