Viper GTS V10-488 8.0L (1998)
14. Check the vehicles curb height by measuring the distance from the center of the front frame rail crossmember to top surface of Vehicle Height
Checking Fixture, (at front edge).
15. Check the vehicles curb height by measuring the distance from both rear frame rails to top edge of Vehicle Height Checking Fixture.
16. If after setting the vehicle to the specified design height using the required procedure, curb height specification still is not obtained, coil spring
preload will need to be adjusted to obtain correct vehicle curb height.
17. Remove the vehicle height checking fixtures from the vehicle.
Dynamic Toe Pattern
Dynamic toe pattern is the steering of the road wheels when there is vertical movement of the suspension with no rotation of the steering wheel.
Dynamic Toe pattern has been set at the factory when the vehicle was built. It will come into specification when the specified camber, caster and static
toe specifications are met and maintained.
There are features on the frame of the Viper which can be used to adjust the dynamic Toe pattern. They must never be used unless the frame has
sustained damage in those areas.
Toe Adjustment
PROCEDURE
After a toe pattern arc has been plotted and is outside of shaded area on the graph, the steering gear, rear toe links or both must be adjusted.
If the front toe pattern requires adjustment, the steering gear can be raised using split shims. If the steering gear must be lowered, the gear
mountings are misaligned and would require alignment.
If the rear toe pattern requires adjustment, the rear toe links can be raised or lowered using toe link shims. The rear toe links are mounted to the
frame in vertical elongated holes that allow the toe link to be moved up or down. Toe link shims in increments of 2 mm (0.080 inch) above or
below design (nominal) are used to position the toe link.
A 2 mm (0.080 inch) change in steering gear or toe link height will effect the toe pattern by about 0.15° when measured from the design height
(nominal) to either jounce or rebound positions. It is typical for a shim to have about 1 mm (0.040 inch) up and down play.
Front Toe Pattern
On the front of the vehicle the tie rods are located in front of the spindles. If the steering gear is raised toe-in will increase on rebound and toe-out
will increase on jounce. If the steering gear is lowered the opposite would occur. The front toe pattern should arc from -0.10° toe-out at 50 mm (2
inch) jounce to +0.20° toe-in at 50 mm (2 inch) rebound.
Rear Toe Pattern
On the rear of the vehicle the tie rods are located rearward of the spindles. If a toe link is raised, toe-out will increase on rebound and toe-in will
increase on jounce. If a toe link is lowered the opposite would occur. The toe pattern should arc from +0.30° toe-in at 50 mm (2 inch) jounce to
0.00° toe at 50 mm (2 inch) rebound.
SUSPENSION INSTALLATION
After toe pattern has been inspected or adjusted, perform the following procedures.
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Install the coil-over-shock assemblies.
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Connect anti-sway bar links to lower control arms.
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Verify wheel toe setting.
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Road test vehicle to determine if problem is corrected.
Front and Rear Static Toe Position
NOTES:
- The static wheel toe position should be the final adjustment made to the vehicle during the alignment procedure.
- When setting front and rear wheel static toe position, it is recommended to leave the engine running during the front wheel toe setting procedure.