Here is a rundown of receivers.
Class IV
~ Class IV hitches are weight carrying (WC) and weight distributing (WD) hitches depending on the vehicle and hitch specifications.
~ Not all Class IV hitches are rated to be both. See the specific hitch for that information.
~ Class IV hitches used as weight carrying are rated up to 10,000 lbs. gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 1000 lbs.
~ Class IV hitches used for weight distributing are rated up to 14,000 lbs. gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 1400 lbs.
~ A Class IV hitch usually has a 2" square receiver opening.
~ A higher class drawbar does not increase the towing capacity of the hitch. To use this class of hitch for weight distribution requires a weight distribution system.
~ Class IV hitches attach to the vehicle frame only.
Class V
~ Class V hitches are weight carrying (WC) and weight distributing (WD) hitches depending on the vehicle and hitch specifications.
~ Class V hitches used as weight carrying are rated up to 12,000 lbs. gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 1200 lbs.
~ Class V hitches used for weight distributing are rated up to 17,000 lbs. gross trailer weight (GTW) with a maximum trailer tongue weight (TW) of 1700 lbs.
~ Your ball mount and hitch ball need to both be rated for Class V to safely tow these weight loads. To use this class of hitch for weight distribution requires a weight distribution system.
~ A Class V hitch has a 2-1/2" square receiver opening.
~ Class V hitches attach to the vehicle frame only.