Operation CHARM: Car repair manuals for everyone.

Lead

Lead is the deviation of the vehicle from a straight path, on a level road, without hand pressure on the steering wheel.
Lead is usually caused by:
- Tire construction.
- Uneven brake adjustment. Refer to Brakes and Traction Control.
- Wheel alignment.
The way in which a tire is built can produce lead. Rear tires will not cause lead.