Dodge Viper SRT-10 (ZB). Manual — part 17
(11) Remove nut and bolt fastening top of shock
assembly to frame (Fig. 24).
(12) Remove shock assembly in following fashion:
(a) Tip upper end of shock assembly outboard
until it aligns with access hole where shock service
plug was removed (Fig. 25).
(b) Raise shock assembly upper eye through
access hole just enough to allow lower end of shock
clevis bracket to be shifted inboard into open area
between lower control arm and frame.
(c) Lower shock assembly into open area and
remove shock upper eye from access hole.
(d) Remove shock assembly upper end first out
over upper control arm.
(13) If shock assembly needs to be disassembled,
(Refer to 2 - SUSPENSION/REAR/SHOCK - DISAS-
SEMBLY)
DISASSEMBLY
The shock assembly must be removed from the
vehicle for it to be disassembled and assembled.
(Refer
to
2
-
SUSPENSION/REAR/SHOCK
-
REMOVAL).
(1) If both shock absorber assemblies are being
serviced at the same time, mark the coil spring and
shock absorber assembly according to which side of
the vehicle the shock absorber was removed from,
and which shock absorber the coil spring was
removed from.
(2) Position the shock absorber assembly in the
strut coil spring compressor following the manufac-
turers instructions. First, set the lower hooks on the
coil spring (Fig. 26), then set the upper hooks (Fig.
27).
(3) Compress the coil spring until enough room is
given to remove the coil spring upper seat.
(4) Remove the coil spring upper seat. To remove
the upper seat, pull up on the shock absorber, collar
and jounce bumper, then remove the seat utilizing
the cutout in its side (Fig. 28).
(5) Remove the shock absorber out through the
bottom of the coil spring. Depending on upper
hook positioning, it may be necessary to release
the tension from the coil spring by backing off
the compressor drive first, before the shock col-
lar and upper eye can be pulled through the
coil spring.
NOTE: If the coil spring needs to be serviced, pro-
ceed with the next step, otherwise, proceed with
step 7.
(6) Release the tension from the coil spring by
backing off the compressor drive fully. Push back the
compressor upper hooks and remove the coil spring
from the spring compressor.
(7) Inspect the shock absorber assembly compo-
nents for the following and replace as necessary:
• Inspect the shock absorber for any condition of
shaft binding over the full stroke of the shaft.
• Check the upper seat and lower seat for cracks
and distortion.
Fig. 24 Upper Shock Mounting
1 - FRAME BRACKET
2 - SHOCK EYE
Fig. 25 Shock Service Access Hole
1 - SHOCK ACCESS HOLE
2 - SHOCK UPPER EYE
2 - 42
REAR SUSPENSION
ZB
SHOCK ASSEMBLY (Continued)
• Inspect the jounce bumper for cracks and signs
of deterioration.
• Inspect the plastic collar for cracks and signs of
deterioration.
(8) If the shock absorber needs to be removed from
the clevis bracket, it can be done by performing the
following:
(a) Place the clevis bracket (with shock) verti-
cally in a vise equipped with soft jaw caps.
(b) Pull back knob on Wrench, Special Tool 9024.
Slide Wrench down over shock absorber body, then
release knob, inserting spring-loaded tab into notch
of shock body as shown (Fig. 29).
(c) Attach a ratchet or breaker bar to the
Wrench square drive hole, then loosen and remove
the shock absorber from the clevis bracket.
(9) Pull back knob on Wrench, and remove from
shock absorber.
NOTE: For reassembly of the shock assembly,
(Refer to 2 - SUSPENSION/REAR/SHOCK - ASSEM-
BLY).
ASSEMBLY
CAUTION: When installing the shock absorber into
the clevis bracket, thread sealant must be used on
the threads of the shock absorber and the shock
absorber must be tightened to the required torque
specification.
(1) If the shock absorber needs to be installed in
the clevis bracket, it can be done by performing the
following:
(a) Place the clevis bracket vertically in a vise.
Fig. 26 Lower Hooks Positioned
1 - SHOCK ABSORBER ASSEMBLY
2 - COMPRESSOR
3 - LOWER HOOKS
4 - COIL SPRING
Fig. 27 Upper Hooks Positioned
1 - SHOCK ABSORBER ASSEMBLY
2 - COIL SPRING
3 - UPPER HOOKS
Fig. 28 Upper Seat Removal/Installation
1 - COLLAR
2 - COIL SPRING
3 - UPPER SEAT
4 - JOUNCE BUMPER
ZB
REAR SUSPENSION
2 - 43
SHOCK ASSEMBLY (Continued)
(b) Coat the threads on the shock absorber with
Mopar
t Lock ’N Seal.
(c) Thread the shock absorber into the clevis by
hand as far as possible.
(d) Pull back knob on Wrench, Special Tool 9024.
Slide Wrench down over shock absorber body, then
release knob, inserting spring-loaded tab into notch
of shock body as shown (Fig. 29).
(e) Attach a torque wrench to the Wrench square
drive hole, then tighten the shock absorber to 68
N·m (50 ft. lbs.) torque.
(f) Pull back the knob on the Wrench, and
remove it from the shock absorber.
(g) Remove
the
shock
absorber
and
clevis
bracket from the vise.
NOTE: If the coil spring has been removed from the
spring compressor, proceed with the next step, oth-
erwise, proceed with step 4.
(2) Place the coil spring in the compressor follow-
ing the manufacturers instructions. Install the coil
spring in the compressor with the round coil end of
the spring facing downward while the flat coil end
faces upward.
(3) Compress the coil spring. Make sure com-
pressor hooks are properly placed so that the
shock absorber can be inserted up through the
coil spring once compressed.
(4) Insert the shock absorber up through the bot-
tom of the coil spring until the lower spring seat con-
tacts the lower end of the coil spring. Rotate the
shock until the coil spring end sits squarely against
the step built into the lower spring seat (Fig. 30).
(5) Holding the shock, collar and jounce bumper
upward, install the upper seat on the shock absorber
utilizing the cutout in the seat (Fig. 28).
(6) Position the upper seat on the top of the coil
spring so the cutout in the upper seat is not posi-
tioned at the upper end of the coil spring (Fig. 31).
(7) Slowly release the tension from the coil spring
by backing off the compressor drive completely. As
the tension is relieved, make sure the coil spring,
upper and lower seats, and shock absorber align
properly.
(8) Push back the spring compressor upper and
lower hooks, then remove the shock absorber assem-
bly from the spring compressor.
Fig. 29 Wrench 9024 Installed On Shock
1 - NOTCH IN SHOCK BODY
2 - SHOCK ABSORBER BODY
3 - CLEVIS BRACKET
4 - 1/2
9
SQUARE DRIVE HOLE
5 - KNOB
Fig. 30 Coil Spring End Against Seat Step
1 - SHOCK ABSORBER
2 - COIL SPRING END
3 - STEP IN LOWER SEAT
Fig. 31 Upper Seat Positioning
1 - UPPER SHOCK EYE
2 - CUT-OUT
3 - END OF COIL SPRING
2 - 44
REAR SUSPENSION
ZB
SHOCK ASSEMBLY (Continued)
(9) Install the shock assembly on the vehicle
(Refer
to
2
-
SUSPENSION/REAR/SHOCK
-
INSTALLATION).
INSTALLATION
NOTE: Functional, it makes no difference which
side of the rear shock clevis bracket is mounted
inboard or outboard on the vehicle. But, to be con-
sistent, it is recommended that the shock assembly
be installed with the lower seat step oriented
inboard.
(1) Position shock assembly in mounting position
as follows:
(a) Insert shock assembly clevis bracket end first
into wheelhouse down though upper control arm
and into open area between lower control arm and
frame.
(b) Raise shock assembly upper eye upward
through access hole just enough to allow lower end
of shock clevis bracket to be shifted outboard over
isolator bushing installed on lower control arm
(Fig. 25).
(c) Lower shock assembly clevis bracket onto iso-
lator bushing and move upper end of shock assem-
bly inboard until the upper eye aligns with its
mounting hole in frame.
(2) Install bolt and nut fastening top of shock
assembly to frame (Fig. 24). Do not tighten at this
time.
(3) Install bolt and nut mounting shock assembly
clevis bracket to isolator bushing on lower control
arm (Fig. 23). Do not tighten at this time.
(4) Install tire and wheel assembly (Refer to 22 -
TIRES/WHEELS - INSTALLATION). Progressively
tighten wheel mounting nuts in proper sequence to
122 N·m (90 ft. lbs.) torque.
(5) Lower vehicle.
(6) Raise carpet up and install shock service plug
(Fig. 22).
(7) Flip convertible top cover down and install tack
strips over mounting studs using care not to pinch
carpet under tack strips (Fig. 21).
(8) Install tack strip mounting nuts (Fig. 21).
Tighten tack strip nuts to 12 N·m (9 ft. lbs.) torque.
(9) Connect rear window defroster electrical con-
nectors.
(10) Inspect and if necessary install new butyl
patches on tack strip support panel to clip joint for
sealing tub area.
(11) Close and latch convertible top and check for
fit.
(12) Verify vehicle fuel tank is full of fuel. If tank
is not full of fuel, reduction in weight will affect
height of vehicle and design height measurement.
(13) Remove any load within passenger and lug-
gage compartments that is not factory equipment.
(14) Position vehicle on alignment rack/drive-on
lift equipped with front turntables and rear slip
plates.
(15) Check all tires for proper inflation pressure
and adjust as necessary.
NOTE: In order to get an accurate rear height mea-
surement it is necessary to remove the belly pan.
(16) Remove belly pan from frame. (Refer to 23 -
BODY/EXTERIOR/BELLY PAN - REMOVAL)
(17) Raise rear of vehicle.
(18) Remove both rear tire and wheel assemblies.
(19) Install Suspension Height Stands, Special
Tool 9096, in place of removed wheels as shown (Fig.
32). Install all wheel mounting nuts and progres-
sively tighten in proper sequence to 122 N·m (90 ft.
lbs.) torque.
(20) Lower vehicle making sure pins are removed
from rear slip plates on alignment rack before Height
Stands make contact.
Fig. 32 Height Stand Mounted On Rear Of Vehicle
1 - SUSPENSION HEIGHT GAGE 6914
2 - SLIP PLATE
3 - SUSPENSION HEIGHT STAND 9096
ZB
REAR SUSPENSION
2 - 45
SHOCK ASSEMBLY (Continued)
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