The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - In-Cab Air Filter? 2004 Silverado

**CarolinaHD** · 09-14-2021, 08:40 PM

GM removed that starting in 2003. The indention is still on the HVAC box and you can retrofit it. There's a thread somewhere out there.

09-14-2021, 08:40 PM	#2
CarolinaHD Moderator Join Date: Aug 2017 Location: Cabarrus Posts: 406	Re: In-Cab Air Filter? 2004 Silverado GM removed that starting in 2003. The indention is still on the HVAC box and you can retrofit it. There's a thread somewhere out there. __________________ Alex 1967 C50 292ci Lumber truck 1967 C50 292ci Dump truck 1967 C60 366ci Fire truck