Upper
The upper
control arm is a high strength steel stamping. The upper control arm uses the 2 rubber bushings of the upper control arm/shock absorber mounting bracket to isolate it from the mounting bracket and the body of the vehicle. The isolator bushings used in the upper control arm are a metal encased rubber isolated pivot bushing. The bushings isolate the upper control arm from the body of the vehicle yet allows for the up and down movement of the control arm during the jounce and rebound travel of the vehicle
suspension. The upper control arm is bolted to the top of the
steering knuckle through the upper
ball joint.