Chevrolet 30 Series 1967 Service Manual page 130

FRONT SUSPENSION 3-2
The Chevrolet Truck line incorporates two different
types of front suspension systems: Independent coil, and
I-Beam axle with conventional leaf or tapered leaf
springs (figs. 1, 2, 3).
The unequal length control arm coil spring independent
suspension is used on the forward control P-10 series
and on conventional C -10-20-30 series (1/2, 3/4, and
1-ton). This suspension consists of upper and lower con­
trol arms pivoting on steel threaded bushings on upper
and lower control arm shafts which are attached to the
STABILIZER
FRONT HANGAR
F ig . 2 - I-Beam Suspension P20-P30
GENERAL DESCRIPTION
LOWER CONTROL ARM
F ig . 1 - Independent Front Suspension
crossmem ber with U-bolts.
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 on the upper end. The forward control P-10 series
is equipped with a stabilizer bar connected to the lower
control arm and transversely mounted to the frame side
SHOCK ABSORBER
SHACKLE
SPRING ASSY.
These control arms are
F ig . 3 - I-Beam Suspension 4 0 , 50 and 60 Series
UPPER
CONTROL ARM
FRONT HUB
AND BRAKE
DRUM
0
CHEVROLET TRUCK SERVICE MANUAL