Thrust Wear – Accelerated wear on the inside of one drive tire due to improperly aligned drive axles causing the truck to veer from a straight direction.
Tire on one side of the truck rolls in a larger diameter than the opposing tire due to unparalleled axles.

Excessive curbing can result in “Pinch Shock”-Sidewall is subjected to abnormally heavy loads, resulting in a crimped core.

Similar wear pattern to thrust angle due to improper alignment of a tractor’s rear axles with the trailer axles causing the trailer to track to the left or right.
Misaligned trailer axles can cause the truck to wander. Worn drive axles mounting can cause the truck to pull constantly in one direction.

Positive Camber - Tires tilted at the bottom, resulting in smooth wear on the outside of one of the tires.
Negative Camber - Tires tilted at the top, leading to smooth wear on the inside of the one of the tires.

A series of high and low spots that manifest on the steer and trailer tire tread result from loss of tire-to-road contact caused by vibrations from worn ride control or suspension components creating tire bounce.

A lone, scrubbed band of tread running across the tire creating a “flatter” area than the tire surface, resulting from a locked or dragging foundation brake, a panic stop, or aggressive braking.

Mechanical drive train forces and manifests as localized flat spots crossing the tread in a diagonal pattern.
Aggravated by: Improper alignment, worn or improperly adjusted bearings, differing tire diameters, mismatched or improperly inflated tires.