Before you select a towing vehicle you need to determine the weight of the trailer being towed as well as the weight the vehicle will carry while towing. To make things easier and provide a good margin of safety, Dodge has created five classifications for trailer weights and hitches. Take a look at the breakdown of maximum weights for each class, typical trailer loads, and hitch requirements below.
2,000-pound maximum
Folding camping trailers and trailers for small boats, motorcycles, and snowmobiles
Load-carrying (non-equalizing) hitch
3,500-pound maximum
Single-axle, small to medium length (up to 18 feet) trailers
   
5,000-pound maximum
Dual-axle or large single-axle trailers
Weight-distributing hitch not required, unless specified for a particular vehicle
12,000-pound maximum
Largest travel trailers made for recreation
Weight-distributing hitch is required; as indicated by each weight classification, there are
three types of hitches that are required
Over 12,000-pounds
Must be fifth-wheel or gooseneck