See Figures 1, 2 and 3
Toe is a measurement of how far a wheel is turned in or out from the straight ahead direction. When the front of the wheel is turned in, the toe is positive. When the front of the wheel is turned out, toe is negative. An incorrect toe setting can affect steering feel and cause excessive tire wear.
Stated another way, toe-in is the amount that the front of the wheels are closer together than the backs of the same wheels.
The actual amount of toe-in is normally only a fraction of a degree.
Toe adjustment is normally performed as the last of the wheel alignment settings (after caster and camber). It is adjusted by turning the tie rod adjustment sleeves in order to obtain the proper specification. After setting, the number of threads inside the adjuster sleeve must be equal, within a tolerance of 3 threads, on either end of the sleeve.