When performing a four-wheel alignment, which adjustment is made to correct the thrust angle?

When performing a four-wheel alignment, correcting the thrust angle primarily involves adjusting the rear toe. The thrust angle is the angle between the vehicle's centerline and the direction in which the rear wheels are pointed. If the rear wheels are not aligned in the same direction as the front wheels, it can lead to uneven tire wear and handling issues.

Adjusting the rear toe directly influences the positioning of the rear wheels. This adjustment helps ensure that the rear wheels are parallel to each other and in line with the vehicle's intended travel direction. Proper adjustment of the rear toe can effectively realign the thrust angle so that the vehicle tracks straight down the road.

In contrast, adjustments to rear camber, front camber, or front toe do not directly address the thrust angle. While these angles can impact overall vehicle handling and tire wear, they do not correct the relationship between the rear wheels and the vehicle’s centerline. Thus, focusing on rear toe adjustments provides the necessary correction for thrust angle misalignment.