GM Service Manual Online
For 1990-2009 cars only

If you will be installing a snow plow on your vehicle, we recommend that the vehicle have the snow plow prep package (RPO ANQ). Before installing a snow plow, see your dealer/retailer for information on other recommended optional equipment and vehicle weight restrictions.

Notice: The payload your vehicle can carry will be reduced when a snow plow is installed. Your vehicle can be damaged if either the front or rear axle ratings, or the GVW, are exceeded. See your dealer/retailer for more information.

Caution: On some vehicles that have certain front mounted equipment, such as a snow plow, it may be possible to load the front axle to the front gross axle weight rating (GAWR) but not have enough weight on the rear axle to have proper braking performance. If your brakes can not work properly, you could have a crash. To help your brakes work properly when a snow plow is installed, always follow the snow plow manufacturer or installer's recommendation for rear ballast to ensure a proper front and rear weight distribution ratio, even though the actual front weight may be less than the front GAWR, and the total vehicle weight is less than the gross vehicle weight rating (GVWR). Maintaining a proper front and rear weight distribution ratio is necessary to provide proper braking performance.