Towing capacity of 2004 gmc sierra Read Also: Towing capacity of 2004 gmc sierra denali 2004 Gmc sierra denali towing capacity Towing capacity of 2004 gmc sierra 2500 2004 Gmc sierra 2500 towing capacity Towing capacity of a 2004 gmc sierra 1500 2004 Gmc sierra towing capacity chart