GM Service Manual Online
For 1990-2009 cars only
    • Tires --- Tires with unequal contact and grip on the road cause unequal braking. The inflation and the tread pattern of the right and the left tires should be equal.
    • Vehicle Loading -- The most heavily loaded wheels on the vehicle require more braking force when the loading is unequal.
    • Front Wheel Bearings --- Loose front wheel bearings permit the rotor to tilt. Loose front wheel bearings also cause the rotor to have spotty contact with the linings. A tilted rotor that has spotty contact with the lining causes erratic braking.
    • Front End Alignment --- Misalignment of the following components will cause the brakes to pull to one side of the vehicle:
      • The front end
      • The camber
      • The caster