Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Lead/Pull Description

Lead/Pull is the deviation of the vehicle from a straight path, on a level road with no pressure on the steering wheel.

Lead/Pull is generally caused by the following conditions:
^ A misconstructed tire.
^ An uneven brake adjustment.
^ A misaligned wheel.

The way in which a tire is built can produce lead in a vehicle. An example of this is placement of the belt. Off-center belts on radial tires can cause the tire to develop a side force while rolling straight down the road and the tire will tend to roll like a cone.

The RADIAL TIRE LEAD/PULL CORRECTION chart should be used to make sure that the front wheel alignment is not mistaken for tire lead. Rear tires will not cause lead.