If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: : {( I1 w c, M1 N3 \3 R5 Y8 D; q* U2 A
(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot9 i; N# L# X( U. N3 Y
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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.* G' Z) H4 d0 r4 P
7 A; x r. g& ~$ ]& O& d, I(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.