Snowplow, Ballast, and SumoSprings. Snowplow Manufacturers Recommend a Level Truck and Plow. Snowplow manufacturers detail the importance of having the wings of your snowplow level with the ground. They also detail the importance of leveling your truck by adding ballast behind the rear axle. Ballast, weight added to the rear, can be sandbags, tailgate spreaders, any weight secured in the …