Hi all, newbie here. I wanted to pass on a problem I had with my AC. It was leaking into the passenger floorboard but I couldnt find a leak. After searching on here a little bit, I found some info that helped out. Turns out the leak was from the drain that protrudes thru the firewall. I thought it was the air box at first but the water was coming out of the drain and ran back to the firewall. I believe is seeped thru the firewall seal and into the cab. Once I put a hose on the drain, problem gone! Just wanted to pass this on to everyone in case they come across it. I love the board, great info!