Towing capacity for 1991 GMC crew cab 2500 4X4 7.4 liter engine 4.11 axle ratio?

The towing capacity for a 1991 GMC Crew Cab 2500 4X4 with a 7.4-liter engine and a 4.11 axle ratio is typically around 10,000 to 12,000 pounds, depending on the specific configuration and options. It's important to consult the owner's manual or manufacturer's specifications for the most accurate information, as capacities can vary based on additional factors like the vehicle's weight and equipment. Always ensure that you adhere to safety guidelines and stay within the recommended towing limits.