Rear Tires Wearing on Inside

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Rear Tires Wearing on Inside

Rear Tires Wearing on Inside

Car trouble symptoms

The rear tire is wearing from the inside edge. When the rear tire is wearing on the inside edge, this type of wear indicates a wheel alignment problem.

Cause of abnormal wear on the inside edge of the tire.

(1) Wheel alignment problem, specifically negative camber.

The idea of "wheel alignment" essentially has to do with how straight the wheels are relative to the vehicle's frame.

Mechanics use the term "camber" when they are talking about the tilt of a wheel. Specifically, a wheel has either:

1) positive camber,
2) negative camber, or
3) no camber.

If a wheel has a "positive camber", it's tilted outward or, away from the vehicle's frame. If a wheel has a "negative camber", it's tilted inward or, towards the vehicle's frame. If a wheel has no camber, it's not tilted - this is what you want.

As indicated in the problem, one (or more) of the tires is wearing mainly on its inside edge. This means the wheel is tilted inward or, has a "negative camber". An inward tilt will, of course, cause the tire to wear on its inside edge.

What to do?
You'll need to have an alignment job done on this vehicle. It's a good idea to have this done soon because the longer you wait, the worse the tire(s) will get. Some mechanics may tell you they can't do an alignment properly without first replacing one or more front end parts. If this is what a mechanic tells you, get a second opinion before proceeding with any such repairs.

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