Hey, my name is Stephanie. I'm redoing my 1999 Silverado C1500 from the chassis up. I need a few panels replaced in the cab portion of the truck. I'm just wondering if anyone has any information. It is a 3-door extended cab. I am currently replacing the rocker panels on both sides. For the passenger/RH I know I need a 3-door rocker panel. Does anyone know if the driver/LH can be replaced with a 2-door option? If not, what panel would be the correct one? Right now my best guess is that I need the '2-door' for the driver and the '3rd & 4th suicide door' for passenger. Also, if anyone has links to those parts that would be great. Thanks Guys!