If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:* C* B! C3 S: h; q# r# R
1 \( U, Z5 \/ A(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot5 @8 W* C& e& B( P; `$ P& p
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(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. * X* q1 \9 P) [# D0 R 4 g, y! \; G% b$ [! D# K7 n(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.