Main Leaf Of Leaf Spring-Firebird; Upper Control Arm Bushing - Pontiac Grand Prix Service Manual

REAR SUSPENSION 4-5
10. Tighten anchor plate attaching nut to 40 lb. ft.
torque. Tighten spring front bracket attaching screws
to 25 lb. ft. torque. Tighten spring eye bolt nut to 75 Ib.
ft. torque. Tighten shackle nuts to 50 lb. ft. torque.
Tighten shock absorber lower stud nut to 60 lb. ft.
torque.
MAIN LEAF OF LEAF SPRING--FIREBIRD
be removed prior to separating the leaf for insert
removal.
2. Using a suitable pry bar placed between spring
leafs, separate leafs enough to allow removal of insert.
INSTALL
1. Install by reversing above steps.
UPPER CONTROL ARM
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EXCEPT FlREBlRD
REMOVE
REMOVE
NOTE: The main leaft (Fig. 4-4) is the only leaf of this
spring that is replaceable. If any of the smaller leafs
require replacement, the entire spring assembly must be
replaced.
1. Remove spring (see LEAF SPRING AND SPRING
EYE BUSHING - FIREBIRD - REMOVE, Steps 1
through 5 and steps 7 through 9).
2. With the spring placed on a work bench, pry the
tabs of the spring leaf clips up with a screwdriver and
remove clips and clip liners from spring.
3. Remove the center locating nut and bolt.
NOTE: Keep spring leafs compressed together with a
C-clamp placed near the center locating nut and bolt
while removing the nut and bolt, then carefully release
the C-clamp.
4. Separate the smaller leafs of the spring from the
main leaf.
CAUTION: 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 effected.
INSTALL
1. Reverse the above steps for reassembly.
NOTE: If any leaf clips or clip liners are damaged or
worn, they must be replaced.
2. Tighten spring center locating bolt nut to 23 lb. ft.
torque.
3. Install spring (see LEAF SPRING AND SPRING
EYE BUSHING
-
FIREBIRD - INSTALL).
LEAF SPRING TIP INSERTS
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FlREBlRD
CAUTION: If both control arms are to be replaced,
remove and replace one control arm at a time to prevent
the axle from rolling or slipping sideways as this might
occur with both upper control arms removed, making
replacement difficult.
1. Raise rear of car.
2. Support nose of axle housing with a jack stand.
3. Remove pivot bolt at axle housing and lift upper
control arm to clear boss on axle housing.
6
4. Remove pivot bolt at frame cross-member and
remove upper control arm.
NOTE: Clean and inspect rubber bushings. If worn,
replace as outlined in this section.
INSTALL
1. Install by reversing above steps.
2. While holding nut, tighten pivot bolt to 110 Ib. ft.
torque or while holding pivot bolt, tighten nut to 80 lb.
ft. torque.
NOTE: Car must be at curb height when tightening
pivot bolts.
UPPER CONTROL ARM BUSHING
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EXCEPT
FlREBlRD
REMOVE (IN AXLE HOUSING)
1.
Support nose of axle housing with a jack stand.
2. Remove pivot bolt at axle housing and lift upper
control arm to clear boss on axle housing.
REMOVE
3; Arrange tools as shown in Fig. 4-5 and press
bushing from axle housing.
1. Raise rear of car until wheel and tire assembly is off
of ground. INSTALL
NOTE: Spring must be able to hang in rebound
1. Install bushing in axle housing by arranging tools as
position. On some leafs, the leaf spring clip may haw to
shown in Fig. 4-6 and press into place.