[AllenF]

Had a lot of gaps to close up, reinforce, and engineer. The AC area was pretty complex. On the old vehicles, air and water just runs into the A Pillar pockets. They were not worried about things like leaves, debris, dirt, mice or rust or any of those issues back in 56. The Tahoe (like all modern vehicles) keeps the water out of the vehicle and only lets air in. So I had to weld shut the plenum at the cowl, and build a dam and an input air pocket to connect to the Tahoe HVAC system. Still need to put the drains in, but it all fit. I had to reinforce several areas, and preserve parts of the A pillar on the L side so the emergency brake pedal brackets would work. It's about twice as strong as it was in 56...