If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:, r8 r# g k1 Q; y% e6 K
! m5 @6 o$ v! B& B5 g(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot 1 r5 X; H6 C* j, e Y& D : P3 ~: @# v1 k! Y# ~/ L8 ^# D3 m. K(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. # a( ]) X/ ~4 U) Z( x8 T ( A6 [- Q ~1 `- J. [6 S O! |% i(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.