Camber -- the inclination of the centerline of the wheel from the vertical as viewed from the front of the vehicle. The camber angle will affect the wear on the inner or outer edge of the tire.
Caster -- the angle between an imaginary line drawn through the upper and lower steering pivots and a line perpendicular to the road surface viewed from side of the vehicle. Caster will not cause tire wear unless extreme maladjustment was made.
Toe -- the difference between the leading edge (or front) and trailing edge (or rear) of the tires. Toe-in is the measurement that the the tires are closer together in the front than they are in the back. Toe-out is the measurement that the the tires are further apart in the front than they are in the back.
