Dodge 2004 Ram Pickup 3500 - Manual (Page 278)

Trailer Weight and Trailer Tongue Weight
Gross Trailer Weight (GTW) means the weight of the
trailer plus the weight of all cargo, consumables and
equipment loaded on the trailer when in actual under-
way towing condition. The recommended way to mea-
sure GTW is to put your fully loaded trailer on a vehicle
scale. The entire weight of the trailer must be supported
by the scale.
Tongue Weight is the weight placed on the vehicle’s
trailer hitch by the trailer. Always load a trailer with 60%
to 65% of the weight located ahead of the trailer axle(s)
sufficiently to place 10% to 15% of the GTW on the tow
hitch of your vehicle.
Equalizing hitch are required for Class III or IV trailer
hitches and tongue weights above 350 lbs (159 kg) and
use of trailer sway control is recommended.
Tongue weight must be equal to at least 10% of GTW, but
no more than 15% of GTW.
Also, there are maximum tongue weight ratings that are
not to be exceeded, as follows:
• Class III (the bumper ball type) 500 lbs (227 kg)
• Class IV (the receiver hitch type) 1200 lbs (544 kg)
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