Crossmember And Suspension Unit - Chevrolet 10 1971 Series Chassis Service Manual

FRONT SUSPENSION 3-10
5. Refer to Section 9 - Steering Linkage - Tie Rod, for
service operations.
6. Remove upper and lower ball studs cotter pins and
loosen ball stud nuts. Free steering knuckle from
ball studs by installing Special Tool J-23742. Remove
ball stud nuts and withdraw steering knuckle.
Installation
1. Place steering knuckle in position and insert upper
and lower ball studs into knuckle bosses.
Steering knuckle hole, ball stud and
CAUTION-.
nut should be free of dirt and grease before
tightening nut.
2. Install ball stud nuts and tighten nut to specifications.
(See Specification Section.)
These ball stud nuts to knuckle fasteners
NOTE:
are important attaching parts in that they could
affect the performance of vital components and
systems, and/or could result in major repair
expense. They must each 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 sub­
stitute design. Torque values must be used as
specified during reassembly to assure proper
retention of this part.
If necessary, tighten one more notch to
NOTE:
insert cotter pins. Do not loosen nut to insert
cotter pin. Refer to Ball Joint text for proper
nut installation.
3. Reverse above removal procedure, and tighten splash
shield mounting bolt. Tighten two caliper assembly
mounting bolts to 35 lb. ft. torque.
4. Adjust wheel bearings as outlined under Front Wheel
Bearing Adjustment.
5. Tighten wheel nuts to 75 lb. ft.

Crossmember and Suspension Unit

Component parts of the front suspension may be ser­
viced separately as outlined in the preceding service
operations. However, if extensive service is to be per­
formed to crossmember, frame, etc., the unit can be
removed and installed as follows:
Removal (Fig. 1 8)
1. Place vehicle on hoist and remove the shock absorber
from the lower control arm.
2. Remove idler arm and pitman arm.
3. Support engine and remove front engine mount center
bolts.
4. Separate main brake feeder line from crossmember
tee.
Remove bolts retaining crossmember hangers to
5.
frame side rails.
6. Remove bolts securing crossmember to frame bottom
rail and lower the assembly from vehicle.
Installation
All crossmember to frame attachments
NOTE:
are important attaching parts in that they could
affect the performance of vital components and
systems, and/or could result in major repair
expense. They must be replaced with parts of
the same part numbers or with equivalent parts
if replacement becomes necessary. Do not use
replacement parts of lesser quality or substitute
design. Torque values must be used as specified
during reassembly to assure proper retention of
of these parts.
1. Jack crossmember into position under frame and
install frame bottom rail mounting bolts.
2. Install bolts securing crossmember hanger to frame
and torque nuts. See specifications.
3. Position engine on front mount and install mounting
bolt and torque.
4. Install the shock absorber.
Connect front brake main feeder line and bleed
5.
brakes as described in Section
6. Install idler arm and pitman arm.
7. Check and Adjust front end alignment as outlined
under "Maintenance and Adjustments" in this section.
8. Remove vehicle from hoist.
5.
10-30 CHEVROLET TRUCK SERVICE MANUAL