2024 Denali Duramax Ultimate Towing Capacity. The 2024 gmc sierra 1500 tow capacity can vary based on a few different factors such as engine size,. Towing on the ball, the tongue weight of a typical 25' and larger airstream is around 1000lbs.

Whether you’re looking to move a large rv. It obviously uses a little more on a trip so i watch the mileage then take 2 gallons with me.