Alignments

tirewearchart
Toe
  • Definition: The difference between leading edges and trailing edges of the front wheel and tire assembly, measured at the spindle.
  • Purpose: Minimize tire wear and rolling friction
  • Too much Toe positive or genitive: 1. Rapid tire wear on outside edge is to much positive toe. Inside tire edge would mean to much negative toe. 2. Extreme vehicle wandering or shimmy .

With Lafayette’s perfect roads it is crucial for your vehicle to be aligned once a year. As your vehicle steers itself into one of many potholes we have, with every jolt to
the suspension your alignment numbers move. This is why once a year you should have your vehicles alignment checked. Toe Angle is about 90% of premature tire wear.

toe
Caster
  • Definition: The forward or backward tilt of the upper ball joint, or top of the strut, relative to the lower ball joint.
  • Purpose: Caster affects steering stability and steering wheel returnabilty.
  • Positive Caster: The upper ball joint or top strut bearing is toward the rear of the vehicle in relation to the lower ball joint as viewed from the side of the vehicle.
  • Negative Caster: The upper ball joint or top strut bearing is toward the front if the vehicle in relation to the lower ball joint as viewed from the side of the vehicle.
  • Symptoms of Negative Caster:
    1. Steering wheel shows lack of returnablity after a turn.
    2. Steering is touchy at high speed (wander or weave).
caster
Camber
  • Definition: Inward or outward tilt of the top of the tire.
  • Purpose: Adjustment centers the vehicle’s load on the tire, eliminating pull. Proper adjustment reduces camber tire wear and pulling.
  • To much Positive Camber:
    1. Wear on the outside of the tire.
    2. Extra wear on the suspension parts with positive camber.
    3. The vehicle will pull to the side with the most positive camber.
  • Negative Camber:
  • Too much Camber Causes:
  • Negative Camber Causes:
  • Unequal Camber:
camber_pos
camber_neg
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