Front Axle : Minimum 18,000 lbs capacity
Rear Axle : Minimum 40,000 lbs capacity
Minimum frame RBM: 3,250,000 in.lbs per rail
Minimum CLA 183" for tandem axle body (from cab to center of rearmost axle)
Minimum CLA 200" for tri-axle body (from cab to center of rearmost axle)