Chevrolet 30 Series 1967 Service Manual page 145

Repairs
Front Bushing (Plain)
1. Adapt suitable remover from J - 21058 and remove
bushing.
2. Install new bushing in spring eye using suitable in­
staller from J - 21058.
Rear Bushing (Threaded)
1. Thread end of J-553
bushing.
2. Turn pull nut on tool with wrench and remove
bushing.
3. Insert end of J-553 shackle bushing tool through
spring eye or spring hanger and screw new bushing
on end of tool until it is centered with hole in spring
or hanger.
4. Turn pull nut of tool to press bushing into place
(fig. 37).
Spring Leaf
1. Place spring in a bench vise and remove spring
clips.
NOTE: Spring clips will have to be bent open.
2. File peened end of center bolt and remove center
bolt nut.
3. Open vise slowly and carefully to let spring assembly
expand. Wire brush and clean spring leaves.
4. Replace broken spring leaf.
5. Align center holes in spring by means of a long drift
and compress spring leaves in vise.
F ig . 37 - Installing Threaded Eye Bushing
shackle bushing tool into
. Remove drift from center hole and install new center
6
bolt.
7. Install nut on center bolt and tighten securely and
peen end of bolt to keep nut from loosening.
. Align springs by tapping with a hammer and bend
8
spring clips back in position.
NOTE:
Spring clips should be bent sufficiently
to maintain alignment, but not tight enough to
bind spring action.
Installation
1. Assemble fixed end of spring to spring hanger and
install spring hanger bolt.
2. Install nut, and tighten to 90 ft. lbs. torque.
3. Install shackle pins in rear spring support bushing
and in bushing in spring eye.
4. Locate shackle pins so that each end projects 21/32"
from the ends of the bushings.
5. Place new seals and shackle plates over tapered ends
of the shackle pins.
. Install shackle plate, lockwashers and nuts, and
6
tighten to 30 ft. lbs. torque.
7. Raise spring assembly and locate center bolt in loca­
tor hole of spring seat.
. Install shock absorber anchor plate and "U" bolts.
8
9. Install "U" bolt lockwashers and nuts, and tighten to
specified torque (see "Specifications").
10. Connect shock absorber link or eye to shock ab­
sorber anchor plate.
11. Install lubrication fittings and lubricate.
Series 40-60—Figure 38
Removal
1. Raise vehicle to take weight off spring.
shock absorber from lower bracket.
2. Support I-beam, disconnect "U" bolts and "U" bolt
spacers, and allow to drop. Remove caster shims
and set aside for reinstallation.
3. Remove spring front eye pivot pin nut and withdraw
pivot pin.
4. Drop spring and pull out of rear hanger.
4 0 -6 0 SERIES
FRONT MOUNTING
ALL MODELS
F ig . 38 - 40-60 Spring Mounting
FRONT SUSPENSION 3-17
Disconnect
HANGER
REAR HANGER
T50, 60 SERIES
CHEVROLET TRUCK SERVICE M ANUAL