What would be an indication of potential axle issues relating to uneven tire wear?

An indication of potential axle issues relating to uneven tire wear can indeed be linked to both tire pressure fluctuations and vibrations at high speeds.

Uneven tire wear often suggests that the vehicle's axle may be misaligned or there's a problem with the differential. When a vehicle's axle is not functioning properly, it can lead to an imbalance that results in irregular tire wear patterns. For instance, one side of the tire may wear more quickly than the other, which can create uneven contact with the road surface.

Moreover, tire pressure fluctuations could be a symptom of an underlying axle problem; as improper alignment might lead to one tire being subjected to more stress than the others, resulting in changes to its pressure. Conversely, vibrations at high speeds can also arise from these axle issues. Misaligned or damaged axles can cause the driveshaft to be out of balance, leading to vibrations that are particularly noticeable when driving at higher speeds.

Thus, recognizing both tire pressure fluctuations and high-speed vibrations as signs of potential axle issues is critical for diagnosing and addressing the root cause of uneven tire wear.