If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension: ' @9 D& N1 C" H- O" w" _8 s% i* j% S& a5 n4 Z' O: q
(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot8 ^4 @6 G; [6 c0 k, t M' ^0 }
# e( q) H3 G1 N3 ](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 Q1 x3 t& P* d' w9 f5 a
2 Z/ ^6 Z" a: B/ e. p& C
(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.