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Old 03-14-2013, 12:36 PM   #1
RedComet
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Uneven tire wear on stock alignment

I've got a 2012 SE Sport, 215/50/17 ContiProContacts (with the 'touring' suspension, according to FordETIS and info found on other sites), I'm at roughly 9150 miles. Today I went in to check my tire pressure and lug torque at the local shop after rotating the tires from back to front. The guy who did the inspection indicated that the tires that were formerly my rears are showing uneven wear, wearing more to the outside by about 2/32 compared to the inside (the overall tread depth was still good, but that was the margin).

Does the stock rear alignment on the Focus come dialed in with too much positive camber, and is that what's causing my uneven wear? My driving style is fairly spirited, by the way. If so, can I dial in enough negative camber in the rear with the stock arms to counter this? I'm still on 100% stock suspension.


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Old 03-14-2013, 01:04 PM   #2
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I'm not sure on the 2012 model specifically, but I know that older models usually had about 1 degree of negative camber from the factory. -1 degree was "in spec" for older models. I'm guessing that the new models are the same....

Might want to have alignment checked as it may be out-of-whack already. Could also have too much toe-in in the rear as well which could be causing some of that uneven wear (I think there are toe adjustments in the rear of that one).
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Old 03-16-2013, 01:04 AM   #3
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Most likely your toe is off.
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Old 03-16-2013, 09:08 PM   #4
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too much rear toe in.
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Old 10-18-2013, 11:23 AM   #5
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EDIT: Nevermind...

I noticed a lot of wear on the outside of the tires too, but my rear toe is in-spec. I guess it doesn't take much to wear them out that way.
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Old 10-19-2013, 05:04 PM   #6
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Thanks, thenorm.

I just went out to my driveway and checked with a tape measure. Total toe in the rear should be 0.09" to 0.29" and (assuming the treads are fairly constant) I saw that the treads at the rear of the tire are further apart by more than 1/8" (61.125" compared to 61.25") which means my rear tires are definitely toe in - which is okay. I just wish the toe (combined with the camber and large treads) didn't cause my tires to cup on the inside and get so loud...
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