If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: c7 j" [2 i: Q2 \# R) h7 W : R" r. K8 I: }, Y(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot $ n: y F) R# ?- ~ # Z: [8 \; D! i$ ~4 D& n(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. & R7 ~4 B* I% i# B/ |) Y9 C5 c4 T- `( z8 J
(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.