Chevrolet Light Duty Truck 1973 Service Manual page 231

Leaf Spring Installation
1. Position spring assembly to axle. Make sure spring
is in position at both spring hangers.
NOTE: The shackle assembly must be
attached to the rear spring eye before
installing shackle to rear hanger.
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
suspension components and torque affected suspen­
sion parts to specifications.
. Lower vehicle and remove from hoist.
6
U-Bolt and Anchor Plate Installation
Figure 17 illustrates the m andatory sequence of
tightening U-bolt nuts. Tighten diagonally opposite nuts
to 40-50 foot pounds, then tighten all nuts as shown to
specifications.
CAUTION:
See CAUTION on page 1 of t h i s
s e c t i o n , regarding "U"-Bolt fasteners.
REAR SU S PEN SIO N A N D DRIVELINE
SHACKLE REPLACEMENT
1. Raise vehicle on hoist. Place adjustable lifting
device under axle.
2. Remove load from spring by jacking frame.
3. Loosen spring-to-shackle retaining bolt, but do not
remove.
4. Remove shackle-to-frame bracket retaining b o lt-
then remove shackle bolt from spring eye.
5. Position shackle to spring eye and loosely install
retaining bolt—do not troque retaining bolt at this
time.
. Position shackle to frame bracket and install
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retaining bolt.
7. Rest vehicle weight on suspension components and
torque both shackle bolt retaining nuts to
specifications.
CAUTION:
s e c t i o n , regarding these fasteners.
. Lower vehicle and remove from hoist.
8
Fig. 17—Typical U-Bolt Installation
See CAUTION on page 1 of t h i s
LIGHT DUTY TRUCK SERVICE MANUAL
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