What could cause excessive rear positive toe on both sides of a vehicle with a solid rear axle?

Excessive rear positive toe on both sides of a vehicle with a solid rear axle can be primarily attributed to a bent rear axle. When the rear axle is bent, it can alter the alignment of the wheels, causing them to point outward from the center of the vehicle, resulting in positive toe.

In a solid rear axle setup, the axle itself plays a crucial role in maintaining proper wheel alignment. A bent axle can lead to a discrepancy in the angles at which the wheels are positioned, creating the characteristic excessive positive toe. This misalignment can lead to uneven tire wear, poor handling, and potentially contribute to additional wear on suspension components.

The other components like the front axle or control arms generally affect the alignment of the respective ends of the vehicle but do not directly cause rear toe issues in a solid axle configuration. Therefore, identifying a bent rear axle as the source of the excessive positive toe provides a clear and logical explanation in this scenario.