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Rear tire outside wear

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The car: 88 EA82 wagon, 4wd d/r etc etc...

 

Rear tires are wearing super fast on the outside of the tire only. I thought maybe bad struts, but then I realized that would make it wear fast on the inside. Went to look at the alignment, and can't see if there is any adjustment that I can/should make. Suggestions? Any one? Beuller?

 

Can any one tell me if fast wear on the outer edge of the tire is normal? I've only had the car about 9 months, and don't want to put new tires on if they are going to just get eaten through.

 

Any helps is, as always mucho appreciated

thats not normal. IS the tire cupped at all?

 

i bet the rear alignment is off.

 

nipper

  • Author

Tire is not cupped, only the outside is wearing. I assumed rear alignment/camber issues, but after looking at it for a long while I am still not 100% sure that I want to attempt the pry-bar alignment technique. However that may be my only option, we'll see.

 

thats not normal. IS the tire cupped at all?

 

i bet the rear alignment is off.

 

nipper

Any lift? Or standard height?

 

If you lift the suspensionon an EA81/82 both the rear and front will go positive camber and nither are adjustable. Positive camber will cause more wear on the outside of the tire.

 

i bet the rear alignment is off.

If that is the case being the rear on an old swing arm design Subaru you can't do anything about it. They are solid, no adjustment.

^ negative. both are adjustable. I just uploaded this page from an '88 XT FSM for my buddy who's brat has some crazy rear camber issues.

 

EArearcamberadjustment.jpg

  • Author

OK, after looking at that page from the manual again I think it makes a bit more sense. But, since I broke my ratchet last night trying to loosen the lower strut bolt I'll have to give it a while before I give it a try again (at least until i get my ratchet replaced by Sears, and get a real breaker bar again).

 

Thanks all

first and foremost, are you sure its from the REAR alignment being out? If the tire had previous alignment wear from the front, it'll actually continue to wear to the alignment pattern after its been rotated around.

 

If not, then the rear toe is significatly toed out. Since rear toe has enough adjustment to it, it would cause outside shoulder wear if its toed out. Best advice, go get a four wheel alignment done on it. Before having the alignment done though, check the front tires and make sure you check the tie rod ends, ball joints and other alignment sensitive front end parts because worn parts will cause the alignment to be thrown out as well.

Thanks Numbchux, didn't know that. Would of been nice to know it when I still had my Brumby.

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