If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:% o3 E% g$ Y) K5 H
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(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot- O# c3 \# q+ F- b9 U6 m3 E
1 |1 ^' T5 x9 O5 J' l c( ?(2) To buy a round or square think-glass-disk with diameter or side length of 1 inch. If you can't find it, you can go 99 cents stores or dollartree to buy a large-clear-cloth-button at similar size.8 e. {6 _0 W- ?/ X
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(3) Prepare Epoxy well, spread the paste to one side of the glass or button, attach it to the crack-upper-end from inside of windshield. Wait for 24 hrs. It'll be as solid as a rock and permanently stop the crack extension.