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What Created this Windwhield Crack Pattern?

2196 Views 15 Replies 13 Participants Last post by  Jester84
On Friday, the weather was hot, but not unusually so.

I came out about 6PM and saw this weird spiral crack pattern on my windshield. Please see the attached photos.

Does anyone know what could cause this?

Drawing Sketch Paper Art

Glass Windshield Auto part Automotive window part Wire
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My tech got one like that driving past a golf ball driving range. Perfect circles.

When they come to replace your windshield check the edges. Mind had a burr that caused mine to crack. A UPS truck def threw a rock, but the burr was what split my windshield in half. Sounded like a gunshot.

I took pics and ground the burr down and covered with touch up paint.

GM didn't give a crap. $0 ded in fl so I didn't care.
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