Most people look at the “Max Towing” number on a truck’s brochure (like the 11,550 lbs for a properly equipped Ram 1500) and assume they can tow any trailer under that weight. However, payload is almost always the factor that limits you first.

Payload vs. Towing Capacity

• Towing Capacity: The horizontal weight your truck can pull.
• Payload Capacity: The vertical weight your truck can carry, including passengers, gear, the hitch, and the tongue weight of the trailer.

The 5th Wheel Challenge

Fifth wheels are popular for their stability, but they put roughly 20-25% of their total weight directly over the rear axle (Pin Weight).

• Example: A 10,000 lb 5th wheel has a pin weight of ~2,000 lbs.
• The Math: If your Ram 1500 has a payload of 1,980 lbs, you are already over capacity before you even sit in the driver’s seat.

Critical Ratings to Check

1. GVWR (Gross Vehicle Weight Rating): The maximum allowable weight of your truck fully loaded.
2. GAWR (Gross Axle Weight Rating): The maximum weight for your rear axle.
3. GCWR (Gross Combined Weight Rating): The maximum weight of your truck and trailer combined.

Pro-Tips for Safety

• The 80% Rule: Many experienced RVers recommend staying at or below 80% of your truck’s maximum ratings to account for wind, steep grades, and mechanical longevity.
• Visit a CAT Scale: The only way to know your real numbers is to weigh your rig fully loaded.

Knowing your numbers isn’t just about following the law—it’s about ensuring your truck can actually stop and steer when you need it most.