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Old 04-24-2018, 03:51 PM   #1
thatdamnalex
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Default 2 lug nuts seized on one tire

2016 STI. Went to change my brakes and had two lug nuts seized on one wheel. One came off with some work and stripped the lug, the other I ended up snapping off. Is this common or just some bad luck? First car I've ever had lug nut issues with
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Old 04-24-2018, 04:14 PM   #2
Ranatsu
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Subaru uses what seems like a soft material for their wheel studs. The likely cause is that someone zipped the lug nuts back on with an impact and cross threaded them. Our smaller thread pitch and size probably doesn't help much either.

It can happen even if you don't do that, but I would recommend using a small bit of anti-seize and to always start the lug nuts on by hand for at least 2-3 full revolutions.
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Old 04-24-2018, 04:38 PM   #3
thatdamnalex
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Quote:
Originally Posted by Ranatsu View Post

It can happen even if you don't do that, but I would recommend using a small bit of anti-seize and to always start the lug nuts on by hand for at least 2-3 full revolutions.
I usually hand tighten until can't anymore so this seemed weird to me. The one that snapped had what looked like white corrosion around the lug nut. Almost like it had gotten extremely hot at some point.
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Old 09-26-2022, 10:12 PM   #4
Lone Wolf 75
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I feel your pain. I have a 2018 WRX and have gone through two broken lugs. The first one was last year on the front passenger side when I went to swap out my summer tires for my winter wheels. I called my dealer and read them the riot act for using air wrenches on my wheels, since they were the last people to rotate my tires. Last weekend I had a slow air leak that got progressively worse on the rear driver side wheel. I took the wheel of to see if I could have the leak repaired, and sure enough, one lug nut was frozen and ended up stuck to the point where I had to snap it off and replace the lug, again. Now I am wondering how many more lugs I will be replacing when I swap to winter wheels in about a month and a half. This is the first car (and Subaru) that I have ever had this particular issue with, and it is maddingly frustrating. Did they cheap out on the VA chassis and use lower quality lugs? I was thinking of buying new lug nuts since the factory ones have started to look bad, but if that's not the issue, why should I waste my money? Although, if I were to replace all 20 lugs and the nuts, would that solve my problem?
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Old 09-27-2022, 08:56 AM   #5
Elbert Bass
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Most common cause is using an impact to install & OVERtighten lug nuts. You can buy aftermarket studs at the parts store or your Subaru dealer will no doubt stock nuts and studs. Doesn't take much stupid to strip a Subaru stud/nut - tire stores and the Subaru Express oil/rotate techs have that down to a science. A Subaru line tech replaces at least two a week, minimum.
Get yourself a heavy brass hammer and one of these:
don't use an impact to torque lug nuts.
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