2004 Chevrolet Avalanche Owner's Manual - Page 334

Here are some guidelines for safely carrying a snow plow on your vehicle: • The snow plow manufacturer or installer can assist you in determining the amount of rear ballast required, to help make sure your snowplow/vehicle combination does not exceed the GVW rating, the front and rear axle ratings, and the front and rear weight distribution ratio. • Make sure the weight on the front and rear axles does not exceed the axle rating for each. • For the front axle, if more cargo or passengers must be carried, appropriate counter ballast must be installed rear of the rear axle. Counter ballast must be properly secured so it will not move during driving. • The total vehicle must not exceed the GVW rating. • Follow the snow plow manufacturer's recommendations regarding rear ballast. Rear ballast may be required to ensure a proper front and rear weight distribution ratio, even though the actual weight at the front axle may be less than the front axle rating. Q: What is front axle reserve capacity, and how do I calculate it? A: Front axle reserve capacity is the difference between your front GAWR and the front axle weight of your truck with full fuel and passengers. Basically, it is the amount of weight you can add to your front axle before reaching your front GAWR. 4-62