If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:+ A# \' r* C- l
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(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot2 t4 H2 Z* O/ e' }' f4 R
( O @+ r: A! V: {(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.6 M8 N3 y9 a8 u6 q: ?7 J/ V: @
' G/ y: {6 k6 o" v# o0 r(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.