Uneven wear is one of the biggest threats to the longevity of an automotive tire. When pronounced enough, this problem is capable of reducing the lifespan of the tire by months and even years. If you would like to learn more about the problems that contribute to uneven wear, read on. This article will outline three of the most common causes.
1. Toe And/Or Camber Misalignment
Simply put, if your tires are not rolling in a perfectly straight and true manner, certain parts will receive more wear than others. Toe misalignment refers to the degree of parallelism between the left and right tires in a given set. Good toe alignment means that the tires are perfectly parallel--in other words, there is an equal distance between each and every point on the inner faces of thetrailer tires.
Camber misalignment refers to the degree to which a tire remains perpendicular to the surface of the roadway. This is a less common cause of uneven wear than toe misalignment, yet it can still result in noticeable problems. Generally, camber misalignment manifests as excessive wear along either the inside or the outside edge of the tire's tread.
2. Worn Or Bent Tie Rod Ends
A worn tie rod end contributes to uneven wear by increasing the amount of play in a given tire. This often leads to a tire that bows outward slightly while moving in a forward direction. In other words, worn tie rod ends are a direct cause of toe misalignment and the problematic sorts of wear associated with it. It is also possible for a tie rod end that has become bent to lead to this issue. Having a mechanic inspect your tie rod ends for problems is always a good idea when attending to uneven tread wear.
3. Sagging Suspension
The heavy duty springs at the heart of a car's suspension system tend to sag as the years go on. This sort of sag can affect the vehicle's ride height in a negative way. Eventually, the car will be sitting low enough that it will begin to alter the camber alignment. An experienced mechanic can diagnose this problem by measuring the car's ride height to determine whether or not the springs remain within the specified range. Springs that have sagged below the minimum specified amount will need to either be replaced or shimmed up. Be aware, however, that shimming springs is generally considered a temporary measure; chances are you will need to take more drastic action at some point in the near future.