If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:; W; d! `; P- ?) c
' P- l$ n% I" U! O" l- V4 U(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot ! U, Y+ x8 A0 z( C ' L9 S) R: h4 S( V( S(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. $ X# x9 Y" u: P: E1 o$ E9 r* Y" q% ?
(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.