Xray 4.9mm composite ball joints
Xray have released these molded composite steering ball-joint for the T3 and T2 family of cars. Designed to fit the 5mm pivot ball or ball stud the closed ball joint prevents dust from getting onto the ball end and the incorporated hole allows for easy assembly and dis-assembly. Sold in a set of 4 they allow easy movement of the upper camber links. These ball joints must be used with ball ends #302653, #302654 or #302655, which are available in three lengths for front and rear suspension.
Source: Xray [teamxray.com]