4^4
1968
PONTIAC
SERVICE
MANUAL
INSTALLATION
1.
Position spring front mounting bracket to
spring
front eye. Spring attaching bolt must be in-
stalled so that head of bolt is toward center of
vehicle.
weight of vehicle rests on suspension components.
Torque
all affected parts to specifications.
MAIN
LEAF
OF
LEAF
SPRING
REPLACE
-
FIREBIRD
(Fig.
4-4)
2.
Position spring shackle upper bushing in frame
position shackles to bushings and loosely install bolt
and
nut.
3.
Install
bushing halves in spring
rear
eye, place
spring
to shackles and loosely install shackle lower
bolt and nut.
NOTE:
The main leaf is the
only
leaf of
this
spring
that
is replaceable. If any of the smaller
leafs
require
replacement,
the entire spring as-
sembly
must
be replaced.
REMOVE
NOTE:
When installing spring,
make
sure spring
is
positioned
so
that
parking brake cable is on
underside of spring.
4. Raise front end of spring and position bracket
to underbody. Guide spring into position so that it
will
index in the axle bracket and also make sure that
the tab on spring bracket is indexed in slot provided
in
the underbody.
5. Loosely install spring-to-underbody bracket.
6„
Position spring upper cushion between spring
and
axle bracket so that spring cushion ribs align
with
axle bracket locating
ribs.
1. Remove the leaf spring from the car as outlined
above.
2.
With
the spring placed on a work bench, re-
move the center locating nut and bolt.
3.
With
a screwdriver, pry the tabs of the spring
leaf
clips up and remove insulator and clip from
spring.
4. Separate the smaller leafs of the spring from
the main leaf. Be sure to
note
the position of each
leaf
in regard to the front of the spring. If a leaf is
installed
backwards,! the spring
will
be damaged and
the designed strength of the spring be effected.
7. Place lower spring cushion on spring so that
cushion in indexed on locating bolt and nuts. Upper
cushion and lower cushion
will
be aligned if installa-
tion is correct.
8. Place lower mounting plate over locating dowel
on spring lower pad and loosely install retaining nuts.
9. If new mounting plate was installed, transfer
parking
brake cable retaining bracket to new plate.
10. Position shock absorber to spring mounting
plate and loosely install nut.
11. Position parking brake cable in retaining
bracket
and securely clamp bracket to retain cable.
12. Remove stand
jacks
and lower vehicle so that
REPLACE
1. Reverse the above procedure for reassembly.
If
any leaf clips or insulators are damaged or worn,
they must be replaced.
LEAF
SPRING
TIP
INSERTS
OR
INSULATORS
REPLACEMENT
-
FIREBIRD
1. Raise
rear
of car until wheel and tire assembly
is off of ground. Spring must be able to hang in re-
bound position.
NOTE:
On
some
leafs, the leaf spring clip may
have to be removed prior to separating the leaf for
insert
removal.
CLIP
MAIN
LEAF
FRONT
EYE
BUoHING
INSULATOR
TIP INSERT CLIP
Fig.
4-4
Main
Leaf
of
Leaf
Spring
-
Firebird
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