If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: & P+ Y0 a# p2 | o+ I* E- @, m1 C6 \0 T5 j8 E
(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot& _9 y$ L# d X' @3 f
8 s1 V$ t8 ?! D9 }( m" s% g(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. v5 S% }% n' ]$ L' s( W+ S$ `& N
& ]+ m& d% T9 s5 w& e7 W' V(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.