Towing capacity, without the guesswork
Every truck and SUV leaves the factory with a specific maximum towing capacity — but that number changes dramatically depending on engine, drivetrain, cab configuration, and axle ratio. Two trucks that look identical on the lot can be rated thousands of pounds apart.
TowSifter cuts through that. Enter your vehicle's year, make, and configuration, and get the OEM-rated maximum towing capacity, payload, gross combined weight rating (GCWR), and the trailer hitch class you'll need — plus the specific towing gear that setup calls for.
What determines your tow rating
Four factors move the number more than anything else: the engine (a 3.5L EcoBoost pulls far more than a base V6), the drivetrain (4x2 vs. 4x4 changes the figure), the cab and bed configuration (which affects wheelbase and weight distribution), and the rear axle ratio (a numerically higher ratio like 3.73 tows more than 3.31). A factory tow package ties these together and unlocks the highest rating.
Trailer hitch classes explained
| Class | Max Trailer Weight | Typical Use |
|---|---|---|
| I | Up to 2,000 lbs | Small trailers, bike racks |
| II | Up to 3,500 lbs | Small campers, utility trailers |
| III | Up to 8,000 lbs | Boats, mid-size campers |
| IV | Up to 10,000 lbs | Large trailers, RVs |
| V | 10,000+ lbs | Heavy-duty hauling, gooseneck |
Common towing questions
How do I find my truck's towing capacity?
Your maximum towing capacity depends on year, make, model, engine, drivetrain, cab configuration, and axle ratio. Enter those details above and TowSifter returns the exact OEM-rated figure. Your payload rating is also printed on the sticker inside the driver's-side door jamb.
What's the difference between towing capacity and payload?
Towing capacity is the maximum weight you can pull on a trailer behind the vehicle. Payload is the maximum weight you can carry inside it — passengers and cargo in the cab and bed. They're separate limits and both must be respected; a loaded bed reduces how much you can safely tow.
What hitch class do I need for my trailer?
Hitch class is set by trailer weight. Match the loaded weight of your trailer to the table above, and never exceed your vehicle's rated capacity even if the hitch is rated higher. The weakest link in the system sets your real limit.
Do I need a brake controller?
Most states require trailer brakes — and a brake controller to run them — for trailers over 3,000 lbs loaded. A brake controller syncs the trailer's brakes with your truck's for safe, controlled stops.