If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:' }$ P: Y: z: v4 L* F
3 N6 l ^% ]* ]( p: y(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot. _5 i& Y: h: @9 }, Q4 Q/ ]/ t' U
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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! Z9 E: G p% W
* k% m) g4 P4 ]0 C" a b(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.