Abstract: A motor vehicle disc brake assembly includes a caliper (12) supporting a pair of friction elements (32,33) to be applied against opposite sides (35,37) of a rotor (14). The caliper (12) forms a cylinder bore (18) in which a brake piston apparatus (40) is slidably mounted to be actuated by hydraulic or other fluid pressure from a master cylinder (20). The brake piston apparatus (40) includes a first piston member (46) and a second piston member (60) disposed within the cylinder bore (18) and having a compliant member (82) disposed therebetween. The compliant member (82) substantially isolates the first piston member (46) from vibrations generated by friction element contact with the rotor (14), substantially eliminating operator detectable tactile vibrations.

Abstract: A one-piece sleeve fitted within an aperture of a top arm of a spindle. The sleeve has an aperture therethrough angled with respect to the central axis of the sleeve. The angled aperture is constructed to receive a tapered ball stud integral with a ball mounted within a control arm. The ball stud extends through the aperture with the fastener threaded thereon to abut the sleeve and to draw into the tapered aperture a tapered section of the stud to expand the sleeve and frictionally lock the sleeve within its mounting aperture in the top arm of the spindle and the stud within the angled aperture. The sleeve when unlocked, can be rotated to adjust the camber, or pneumatic trail of the wheel assembly.