The maximum gross weight on the tandem axles is 34,000 pounds.

The maximum gross weight on the tandem axles is 34,000 pounds.

• A. 12,000 pounds
• B. 32,000 pounds
• C. 34,000 pounds
• D. 80,000 pounds

Answer: (C)

The weight on a pair of tandem axles is limited by the Federal Bridge Formula, which caps how heavy a vehicle can be on a given set of axles based on their spacing. For two axles working together as a tandem, that cap is 34,000 pounds. This limit is specific to the tandem pair and is separate from the vehicle’s overall gross weight rating. So, the maximum weight you can put on the tandem axles is 34,000 pounds. The other numbers reflect different limits: 12,000 pounds is a typical weight for a steer axle, 32,000 pounds is not the official tandem cap, and 80,000 pounds is the overall gross vehicle weight limit, not the tandem pair limit.

The weight on a pair of tandem axles is limited by the Federal Bridge Formula, which caps how heavy a vehicle can be on a given set of axles based on their spacing. For two axles working together as a tandem, that cap is 34,000 pounds. This limit is specific to the tandem pair and is separate from the vehicle’s overall gross weight rating.

So, the maximum weight you can put on the tandem axles is 34,000 pounds. The other numbers reflect different limits: 12,000 pounds is a typical weight for a steer axle, 32,000 pounds is not the official tandem cap, and 80,000 pounds is the overall gross vehicle weight limit, not the tandem pair limit.