Suspension: Description and Operation

Fig. 2 Coil spring suspension (typical):

This suspension, Fig. 2, consists of upper and lower control arms pivoting on steel threaded bushings on upper and lower control arm shafts which are bolted to the front suspension crossmember and bracket assembly. These control arms are connected to the steering knuckle through pivoting ball joints. A coil spring is located between the lower control arm and a formed seat in the suspension crossmember, thus the lower control arm is the load-carrying member. The double-acting shock absorbers are also attached to the lower control arms and connect with the frame to the rear of the suspension on the upper end.