At a constant highway speed on a typical straight road,lead/pull is the amount of effort required at the steering wheel tomaintain the vehicle's straight path.
Important:Vehicles will tend to lead/pull in the direction of the roadslope as part of normal operation.
Lead/pull is usually caused by the following factors:
Road slopeVariability in tire constructionWheel alignment (front cross caster and camber)Unbalanced steering gearElectronic Power Steering (EPS) steering position and torquesensors not calibrated correctly, if equipped.Toe Description Wheels
Toe is a measurement of how much the front and/or rear wheelsare turned in or out from a straight-ahead position. When thewheels are turned in, toe is positive-(+). When thewheels are turned out, toe is negative-(−).The actual amount of toe is normally only a fraction of a degree.The purpose of to ...