What are the common issues causing uneven wear on rear tires?

[McAna]

Uneven wear on rear tires is generally caused by abnormal tire pressure, tire dynamic imbalance issues, wheel alignment problems, or suspension issues. Abnormal tire pressure: Either there's excessive difference in pressure among the four tires. Overinflation causes severe wear on the central part of the tire, while underinflation leads to severe wear on both sides. Solution: Adjust all four tires to the appropriate pressure. Tire dynamic imbalance issues: If there's a problem with tire dynamic balance, the tire may show patchy wear patterns. Solution: Rebalance the tires. Wheel alignment problems: If there are wheel alignment issues, one side of the tire may wear more significantly. Excessive camber causes severe outer edge wear, while insufficient camber leads to severe inner edge wear. Solution: Perform wheel alignment again. Suspension issues: Such as loose ball joints or misaligned front suspension systems. In fact, inaccurate wheel alignment also falls under suspension problems. Suspension issues may cause sawtooth wear patterns on the tire tread or excessive wear on individual tires. Solution: First inspect the condition of independent suspension springs and shock absorbers to identify the specific problem.