Dodge ZB 2005 Service Manual page 101

2 - 72 WHEEL ALIGNMENT
WHEEL ALIGNMENT (Continued)
sion is extended (rebound), wheel toe should move in
the opposite direction. Front suspension jounce
should cause the wheels to toe out; rebound should
cause the wheels to toe in. Rear suspension jounce
should cause the wheels to toe in; rebound should
cause the wheels to toe out.
Fig. 23 Wheel Spindle Arc
1 - ORBITAL SWING OF WHEEL SPINDLE
2 - OUTER TIE ROD PIVOT
3 - INNER TIE ROD PIVOT
4 - LOWERED CENTER
5 - CENTER OF RADIUS
6 - RAISED CENTER
TOE PATTERN PREPARATION
Before toe pattern can be inspected, vehicle design
height, suspension settings and design bushing posi-
tion must be established.
(1) Verify that all fluid reservoirs and fuel tank is
full.
(2) Position the vehicle on a known level surface
(suspension or frame alignment rack).
(3) Remove all objects from the vehicle that were
not installed at the assembly plant.
(4) Inflate tires to the specification found on the
tire inflation sticker (placard) on the left door end
frame.
(5) Place vehicle on wheel alignment rack/hoist.
(6) Remove belly pan from frame. (Refer to 23 -
BODY/EXTERIOR/BELLY PAN - REMOVAL)
(7) Verify vehicle design height, caster, and camber
are within specifications and toe is set to Preferred
Specifications. (Refer to 2 - SUSPENSION/WHEEL
ALIGNMENT - STANDARD PROCEDURE).
TOE PATTERN MEASUREMENT
NOTE: Toe Pattern Preparation procedure must be
performed before Toe Pattern Measurement.
(1) Raise vehicle by frame (near PLP holes (Fig.
12) (Fig. 13), but allowing room for Suspension
Height Gages, Special Tools 6914 and 8897, installa-
tion later).
(2) Remove all four wheels.
(3) Disconnect front and rear stabilizer bar links
from lower control arms. (Refer to 2 - SUSPENSION/
FRONT/STABILIZER LINK - REMOVAL) (Refer to 2
- SUSPENSION/REAR/STABILIZER
REMOVAL)
(4) Remove front and rear coil-over-shock assem-
blies. (Refer to 2 - SUSPENSION/FRONT/SHOCK -
REMOVAL) (Refer to 2 - SUSPENSION/REAR/
SHOCK - REMOVAL)
(5) Install wheels.
(6) Install Suspension Height Gages, Special Tools
6914 and 8897, and lower vehicle to design height.
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD PROCEDURE - DESIGN HEIGHT
MEASUREMENT)
(7) With vehicle at design height, measure and
record front and rear toe at each wheel.
(8) Raise front and rear of vehicle 25 mm (1 in.)
above design height (Rebound). Measure and record
front and rear toe at each wheel.
(9) Raise front and rear of vehicle 50 mm (2 in.)
above design height (Rebound). Measure and record
front and rear toe at each wheel.
(10) Return vehicle to design height.
(11) Lower front and rear of vehicle 25 mm (1 in.)
below design height (Jounce). Measure and record
front and rear toe at each wheel.
(12) Lower front and rear of vehicle 50 mm (2 in.)
below design height (Jounce). Measure and record
front and rear toe at each wheel.
NOTE: It may not be possible to obtain a wheel toe
reading with the vehicle lowered 50 mm (2 in.)
below design. If not, measure at nearest attainable
millimeter mark and record as such. It can be drawn
in on Dynamic Toe Pattern Graph and used along
with other plotted readings from other height set-
tings to determine toe pattern arc.
NOTE: Design Arc and Range guidelines (specifica-
tions) printed in Dynamic Toe Pattern Graph are for
each individual wheel. Recorded measurements
plotted on graph should also be drawn in per
wheel.
(13) Plot toe readings for front suspension on
Dynamic Toe Pattern Graph provided in this section
(Fig. 24). If toe pattern arc is within allotted range,
front toe pattern is within limits. If toe pattern is not
within allotted range, steering gear must be raised or
lowered to achieve proper toe pattern.
ZB
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