Dynamic Toe Pattern: Notes
The Viper suspension system is designed to vary wheel toe pattern according to vehicle ride posture to keep wheels pointed in proper direction at all times. The 4-wheel independent suspension alignment must be correct to assure proper road handling. The frame and suspension components are calibrated at assembly plant and should not require adjustment unless vehicle has collision damage. The following information will cover procedures for correcting improper frame, steering gear, and rear toe link alignment that would affect wheel toe pattern. Before performing following operations, verify that front and rear wheel alignment and vehicle height is within specifications.
Toe pattern is regulated by vertical positioning of inner tie rod pivot in relation to orbital swing of wheel spindle. See Fig 1 . Wheel toe settings have no effect on toe pattern. When suspension is fully compressed and then extended with tie rod disconnected from spindle, spindle makes an arc in space without altering toe pattern. When arc of spindle is extended into a full circle and inner tie rod end is positioned in center of circle, toe pattern cannot change. When inner tie rod end is raised or lowered from center of true circle of spindle arc, toe pattern will vary. When suspension is compressed (jounce), wheel toe should change from normal riding height. When suspension is extended (rebound), wheel toe should move in opposite direction. The front suspension jounce should cause toe-out, rebound should cause toe-in. Rear suspension jounce should cause toe-in, rebound should cause toe-out.