* Engine: The size and type of engine dramatically affected towing capacity. A small-block V8 would have a lower capacity than a big-block V8, or a diesel engine (if available in that year range).
* Transmission: Automatic transmissions generally had higher towing capacities than manuals in the same vehicle.
* Axle Ratio: Higher numerical axle ratios (e.g., 4.10 vs. 3.73) allowed for better towing performance.
* Specific Model and Trim: Even within the Suburban or truck lines, different models and trim levels could have slightly different towing capacities due to variations in weight and equipment.
* GVWR (Gross Vehicle Weight Rating): This is the maximum weight of the vehicle itself plus its passengers, cargo and any fluids. The towing capacity is always less than the GVWR.
Therefore, I cannot give you a single towing capacity number. To find the precise towing capacity for your specific vehicle, you need to:
1. Locate the owner's manual: This is the most reliable source of information. The towing capacity will be clearly stated.
2. Check the sticker on the driver's side doorjamb: This sticker usually lists GVWR, payload capacity, and sometimes the towing capacity.
3. Consult a Chevrolet parts or service department: Provide them with the year, model, engine, and transmission of your vehicle.
Keep in mind that even the figures listed are maximum capacities under ideal conditions. Actual towing capacity may be lower depending on factors like terrain, weather, and the weight distribution of the load you're towing.
