If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:( P; M- d% E- E e6 D/ P: b
( Q" K' m8 I( C% r' W ](1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot6 d8 C2 e/ U' O5 R% M i. \1 o8 p
) ?6 E# R# O5 Q& o+ z
(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. # I9 u& V4 X# k: y" J! C2 g' s! c0 y% {# i6 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.