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Unusual tyre wear


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Hi all - I have an 82 Sportswagon (Australia) that is wearing out the insides of both rear tyres - and it handles like a boat on dirt but is fine on bitumen - I have been under the car and I cant see anything unusual - the car has only done 120,000 kms - I have the Subaru workshop manual but it does not mention this problem - any ideas ?

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Bushings

Struts

There’s not much alignment in those rear suspensions but someone should comment specifically since that would be the first question.

 

Have you driven the car 100k and then last month this rates happening or what?

 

Is it rusty? the tops of the rear tires will lean in towards the car if the rear crossmember is starting to fail due to rust. This is the one thing that would most easily affect both sides simultaneously. It would be odd for two struts or wheel bearings to fail in the same way and at the exact same time.

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If your car has a torsion bar spring in the rear and it's tired, both sides will sag. If the bushings are getting tired causing excessive toe or camber, it'll happen on both sides at about the same rate. If one side is way out on toe it'll cause the car to crab and wear both sides.

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