If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:1 O" O% T; Z* Z0 O& B
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(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot 2 S/ ]0 D; q4 u0 f. S6 W & T" T$ K. E4 D& @ W& 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. . U+ D4 e6 a% c9 c 6 x5 C ?6 E" k(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.