Chevrolet 10 Series 1968, Service Manual

Page: 177 / 713

REAR SUSPENSION AND DRIVE LINE 4-8
Fig. 22—In stalling Spring Eye Bushing (Series P20 and C -P 3 0 )
4. Replace bushing using Tool J-8459 as follows.
a. Lubricate threads of J -8459-1 and position in
spring eye.
b. Position J-8459-5, -2, thrust bearing, washer and
J-8459-6 in that order over the threaded portion
of J-8459-1 as shown in Figure 21.
c. Hold J-8459-1 from turning and turn J-8459-6 to
draw bushing out of spring eye.
d. Disassemble tool, lubricate threads, position
J-8459-2 and a new bushing over threaded portion
ofJ-8459-1.
e. Insert tool with bushing through spring eye, install
J-8459-5, -4, thrust bearing, washer and J-8459-6
in that order over the threaded portion of
J-8459-1 (fig. 22).
f. Make sure bushing is started straight, hold
J-8459-1 from turning and turn J-8459-6 until
J-8459-2 contacts spring eye.
g. Remove tool and check bushing for proper seating.
h. Check pin for slip fit in bushing--burnish or ream
bushing if required.
5. Lower frame until spring eye is aligned with holes
in hanger bracket, then install retainer pin— align
retainer pin so that locking bolt will index in slot
(Refer to Figure 18). Install locking bolt and secure
with washer and nut.
6. Lower vehicle to floor and remove jack. Install lu­
brication fitting in retainer pin and lubricate bushing.
Bushing Replacement (Series G-K, 10 and 20)
NOTE:
Only the front bushings are the same
on both the G and K series truck. Both front and
Fig . 23—( G - K 10-20 Series) Removing Spring Eye Bushing
rear bushings on the K series are the same.
Before attempting to replace the rear bushing on
the K series, remove the spring from the vehicle
(fig. 19 and 20).
1. Raise and support rear of vehicle at frame side rail
to relieve tension in springs.
2. Remove nut, washer and bolt from front bushing and
hanger. Continue to raise vehicle until access to
spring front eye is obtained.
3. Insert Tool J-21058-15 with J-22620-2 through eye of
bushing. Center Tool J-21058-6 with J-21058-7 over
threaded end and screw on Tool J-21058-8. By
tightening nut J-21058-8 withdraw bushing from eye
(fig. 23).
4. Place Tool J-21058-15 with J -22620-1 through bush­
ing and eye of spring. Center Tool J-21058-6 and
J-21058-7 and screw Tool J-21858-8 on threaded end
of Tool J-21058-15. Pull bushing into spring eye
(fig. 24).
NOTE:
Outer shell of bushing must be flush
with spring eye to ensure proper alignment of
spring with spring hanger.
5. Disassemble and remove bushing installation tools.
6. Lower vehicle to align spring eye and hanger. Re­
place bolt through hanger and bushing. Install washer
and nut on bolt. Tighten nut to specifications.
Bushing Replacement (Series 40, 50 and 60)
1. Lock parking brake and jack up frame so that hooked
spring leaf touches rebound stop pin.
2. Relieve radius leaf tension on pivot bolt by com­
pressing leaf with a
“ C ”
clamp.
3. Remove bolt from spring eye and release
“ C ”
clamp
to allow sufficient access to spring eye bushing.
4. Replace bushing, using Tool J-21058 as follows.
a. Assemble J-21058-2 and J-21058-15 so that guide
pin end of remover is against hex end of bolt —
lubricate threads of tool.
NOTE:
Use J-21058-2 to remove bushing from
3 inch spring; use J-21058-5 to remove bushing
from 2-1/2 inch spring.
b. Insert tool in bushing and install J-21058-6, -7,
thrust bearing, washer and J-21058-8 in that
order as shown in Figure 25.
Fig. 24—( G - K 10-20 Series) Installing Spring Eye Bushing
CHEVROLET TRUCK SERVICE MANUAL