A double rear-wheel truck (DRW) – frequently referred to together a dually – is a heavy-duty pickup truck v two behind wheels on every side, allowing an ext road contact and also width for better stability, balance, and also traction while driving. Opportunities are you have actually been behind one of these widebody vehicles top top the road and also noticed that is brawny stance and also muscular fenders.

You are watching: Why do trucks have dual rear tires


With four ago wheels rather of two, and a stronger rear axle, a dually truck can handle a larger amount of payload weight and also offer more towing capacity compared to that is standard solitary rear-wheel (SRW) pickup van counterparts. For example, a 2020 Chevrolet Silverado 3500HD V-8 turbo-diesel (DRW) truck can haul 2,215 more pounds and also tow 5,500 much more pounds 보다 its SRW version. Include a gooseneck hitch come both trucks and the dually out-tows the conventional version by a remarkable 14,000 pounds.

Most dually van are likewise equipped v bigger, more powerful brakes for additional stopping power, as well as heavy-duty shocks and also springs because that greater capability to tread uneven terrain and rough control surfaces.

Dually truck Usage

Due to their higher towing and payload capacities, dually trucks are typically used in building to tow hefty machinery and carry structure materials. Their capability to for sure haul comprehensive loads provides them a logical selection for builders, contractors, and also material suppliers.

Away from building sites and commercial operation, dually van are frequently used come tow huge trailers for boats and also horses over extended distances. Numerous of these trailers have the right to weigh 20,000 pounds or much more depending on your cargo.

And in the RV arena, households who gain the outdoors might utilize a dually to tow a large fifth-wheel camper or multiple motorized recreation vehicles (i.e. Four-wheelers, motorcycles, jet skis). A traditional pickup truck may have the ability to handle some of these items, but not with the exact same level that surefootedness. The power and stability that a dually truck can inspire trust and allow the capacity to pull big or weighty loads in a more controlled manner.

Dually truck Pros and Cons

Compared to typical pickup trucks, dually trucks have clear performance benefits such as enhanced maximum towing and also payload capacities, amplified traction in dirt or mud, and greater stability and sway regulate when trailering, specifically in windy problems or if driving top top curvy roads. These features make this trucks ideal for specific applications.

However, consumers should additionally weigh the defect of dually trucks once considering a purchase. From a price standpoint, a dually can price $900 to $2,000 more than that is SRW counterpart. Also, because of weight and also friction, six wheels top top the ground operate less successfully than four. This decreased fuel economy means a higher cost of ownership.

Another detractor is the an obstacle to park and also maneuver the car on small streets as result of the more comprehensive and heavier body designed come accommodate the extra wheels. And a dually truck typically offers a less comfortable journey experience, an especially when it is not hauling or towing a load. Conventional SRW pickup trucks are a better choice to double as household vehicles due to the smoother and much more compliant on-road feel.

Lastly, and also most obviously, is the cost to replace six tires rather of four. This is another included expense the accompanies the dually property experience.

Dually truck Choices

Unlike shopping for conventional SRW pickup trucks, there are a limited number of dually van models to select from in the marketplace.

See more: Can You Lease A Car With A Learner'S Permit, Can You Register And Insure A Car With A Permit

There are 4 mainstream offerings; eight if you counting the advanced versions of every model. These encompass the:

Chevrolet Silverado 3500HD

Each design delivers that is unique variety of features and also each has actually its own range of towing and also payload capacities. The ideal truck is dependency on the buyer’s separation, personal, instance needs and also driving style. Prefer with any kind of vehicle purchase, product research and also test drives are very recommended.