If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: + a& `1 J( b0 n; P5 O4 J; Y* P$ v1 I! i, [' n. S* `
(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot9 a d6 V1 R; Y% ~# F0 _- f
( G" v4 `- b: ~. s& m Q(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. & ?0 [$ M/ F% k, [6 H/ t5 j% G* B4 Y
(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.