Chevrolet 30 Series 1967 Service Manual page 167

d. Disassemble tool,
J-21058-2 and new bushing on J-21058-15--p ilot
new bushing on guide pin of J-21058-2.
NOTE: Use J-21058-2 to install bushing in
3 inch spring; use J - 21058-4 to install bushing in
- inch spring.
2 1 / 2
e. Lubricate spring eye and bushing, insert tool with
bushing into spring eye, then install J-21058-6,
-7 , thrust bearing, washer and J-21058-8 in that
order as shown in Figure 26.
f. Hold J - 21058-15 from turning and turn J-21058-8
until bushing is flush with spring eye. Remove
tool and check bushing for proper seating.
5. Lower frame until top spring leaf touches cam sur­
face of hanger.
. Compress radius leaf with "C" clamp until spring
6
eye bushing lines up with holes in spring hanger. In­
stall retaining bolt, washer and nut--torque nut to
160 ft. lbs.
7. Remove "C" clamp and frame lift.
25 -
Fig . Removing Spring Eye Bushing (Series
Spring Replacement
Series P20 and C-P30
Removal
1. Jack vehicle at frame to relieve tension on spring.
2. Remove lubrication fitting at front hanger and at rear
shackle.
3. Remove lock bolt at retainer pins and install J - 8118
in end of spring eye pin, then using slide hammer
(Tool J-2619 with adapter J-2619-4) pull pin from
spring.
4. Remove bolt retaining nuts, withdraw
" U "
and remove spring assembly from the vehicle.
5. Inspect spring--replace bushings, repair or replace
spring unit as outlined in this section.
Installation
1. Position spring assembly
Model C314, install spacer assembly between axle
housing and spring with thick edge forward. Make
sure spring is in position at rear shackle and at front
hanger, then install
" U "
lubricate threads, install
40, 50, 60)
and
bolts
" U "
on axle housing--on
bolts.
REAR SUSPENSION AND DRIVE LINE 4-9
26 -
Fig . Installing Spring Eye Bushing (Series
2. Install bolt retaining nuts—torque nuts alter­
" U "
nately and evenly to properly seat spring on axle
pad. Torque nuts to 120 ft. lbs.
3. Jack frame as required to align spring eyes; install
spring retainer pins, lock bolts and lubricating fit­
tings--lubricate spring bushings and lower vehicle.
Series K10 and K20
Removal
1. Raise rear of vehicle to relieve tension in spring and
position supports at frame side rails.
2. Loosen, but do not remove, spring-to-shackle retain­
ing nut.
3. Remove nut and bolt securing shackle to spring
hanger.
4. Remove nut and bolt securing spring to front hanger.
5. Remove "U" bolt retaining nuts, withdraw "U" bolts
and spring plate from spring-to-axle housing attach­
ment.
. Withdraw spring from vehicle.
6
7. Inspect spring--replace bushings, repair or replace
spring unit as outlined in this section.
Installation
1. Position spring assembly on axle housing. Make
sure spring is in position at both spring hangers.
NOTE: The shackle assembly must be at­
tached to the rear spring eye before installing
shackle to rear hanger (fig. 19).
2. Install spring retainer plate and "U" bolts--loosely
install retaining nuts, but do not torque at this time.
3. Jack frame as required to align spring and shackle
with spring hangers.
4. Install shackle bolt and nut and again reposition
spring, if necessary to align front eye--install front
eye bolt and nut.
5. Lower vehicle so that weight of vehicle is on suspen­
sion components and torque affected suspension
parts.
a. Spring "U" bolt nuts to 150 ft. lbs.
alternately and evenly to ensure uniform draw on
bolts.)
b. Spring eye and
155 ft. lbs.
40, 50, 60)
and
(Tighten nuts
shackle retaining nuts
CHEVROLET TRUCK SERVICE M ANUAL
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