Lower Control Arm

DESCRIPTION






The front lower control arm used on this vehicle is an aluminum casting. The lower control arm has a bolted-on bracket for front shock absorber mounting. It also contains the lower ball joint, which is pressed into the outer end of the control arm. A rubber isolator bushing is pressed into each inboard corner of the arm. Two cam-headed bolts pass through these bushings to attach the arm to the frame rail of the vehicle.
The lower control arm is attached to the front steering knuckle through a tapered stud which is part of the lower ball joint.
The replaceable components of the lower control arm are the isolator bushings, the ball joint and seal, and the shock absorber mounting bracket.

OPERATION
The lower control arm supports the lower end of the steering knuckle. Working in conjunction with the upper control arm, the lower control arm allows for the up and down movement of the front suspension during jounce and rebound travel.
The cam bolts which mount the lower control arm to the frame are used to make the camber and caster adjustments when performing a front suspension wheel alignment.