How to Read Your Vehicle's Towing Capacity Correctly

What the max tow rating really means

Manufacturers publish a maximum towing capacity that assumes the lightest trim, a specific axle ratio, a properly equipped tow package, and a 150 lb driver with no cargo. Almost no real truck matches that configuration.

Work it out in three steps

1. Find your GCWR (Gross Combined Weight Rating) on the door jamb sticker.
2. Subtract your loaded truck weight — curb weight plus passengers, fuel and cargo.
3. The remainder is your usable trailer weight.

Always leave a 10–15% safety margin, and never exceed the tongue-weight rating of the hitch itself.

Tongue weight matters as much as total weight

A conventional hitch usually wants 10–15% of trailer weight on the tongue. Too little and the trailer sways; too much and the rear axle overloads.

Use our payload and towing calculators to run your own numbers against EPA and NHTSA data for your exact model year.