GMC 1982 Light Duty Truck Service Manual page 383

procedure of components in this portion of the manual as indicated at the
appropriate locations by the terminology "See Notice on page 1 of this
Section".
affect the performance of vital components and systems, a nd/or could result
in major repair expense. It must be replaced with one of the same part
number or with an equivalent part if replacement becomes necessary. Do not
use a replacement part of lesser quality or substitute design. Torque values
must be used as specified during reassembly to assure proper retention of this
part.
General D escrip tion ...........................................................................................3D-1
Component Parts R e p la ce m e n t..................................................................... .3D-2
Shock A bsorbers............................................................................................ .3D-2
Stabilizer S h a f t ............................................................................................. .3D-3
Leaf Spring Assembly...................................................................................3D-4
Specifications........................................................................................................3D-10
All 10-30 series vehicles use a leaf spring/solid rear
axle suspension system. Typical systems are illustrated in
Fig. 3D-1, 3D-2 and 3D-3.
The rear axle assembly is attached to multi-leaf springs
by " U " bolts. The spring front eyes are attached to the
frame at the front hangers, through rubber bushings. The
rear ends of the springs are attached to the frame by the use
of shackles which allow the spring to "change its length"
while the vehicle is in motion. Control arms are not required
with leaf springs.
Ride control is provided by two identical direct double
acting shock absorbers angle-mounted between the frame
and brackets attached to the axle tubes.
SECTION 3D
REAR SUSPENSION
The following notice applies to one or more steps in the assembly
NOTICE This fastener is an important attaching part in that it could
GENERAL DESCRIPTION
INDEX
_________________
Fig. 3D-1--Typical C-30 H.D. Truck Rear Suspension
REAR SUSPENSION 3D-1