If you order just the glass replacement for this repair it is much easier. Instead of pulling out and destroying the housing from the inside as shown in this guide, you can complete this repair by carefully breaking out the glass bits from the front. Make sure you have removed your camera housings as shown in the previous steps to avoid damage to the cameras. Use a small hammer and a flat-head screwdriver to shatter the glass. Pick out remaining bits with jewelers pliers or metal tweezers. Once all of the glass bits are removed, clean the adhesive residue with acetone (nail polish remover). Apply the new replacement glass by removing the backer that covers the adhesive. Press firmly for 30 seconds.

This method preserves the metal bracket and plate which are not typically sold as replacement parts with this type of repair. This guide should be updated with this technique in my opinion.