If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: ! c8 V5 X. `% H/ v9 c & r& K4 n, W4 }3 [9 P+ G(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot4 h- X; p* e( T4 h7 t c
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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. + Q/ \2 f4 a, a5 T; q1 b7 Q3 b. f# b2 N
(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.