Search 34,354 chart rows transcribed from manufacturer towing guides. See the engine, cab, axle, required equipment, and source together. These are published comparison ratings; your truck’s equipment and loaded weight still matter.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with fifth-wheel or gooseneck hitches. 1500 Series notes: to pull fifth-wheel or gooseneck trailers, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings. Axle ratio carries footnote 3: This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings. Axle ratio carries footnote 3: This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings.
Equipment: No package requirement recorded; check source chart.
Chart footnote 1: Maximum trailer weight ratings are calculated assuming a base vehicle, except for any option(s) necessary to achieve the rating, plus driver. Chart is for use with a weight-distributing hitch; weight-carrying hitch maximum is 5000 lbs with 600-lb tongue weight. 1500 Series notes: to achieve a trailer weight rating greater than 5000 lbs, models must be equipped with an available optional suspension: Handling/Trailering (Z85) or Off-Road (Z71). Automatic transmission ratings. Axle ratio carries footnote 3: This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers.