In most cases, yes, a dually can fit on a car trailer, but careful planning and consideration of several factors are essential for a safe and successful transport. Trailer width, ramp capacity, and overall weight limits are the crucial elements that determine compatibility.
Understanding the Basics: Duallys and Car Trailers
Before delving into the specifics, let’s define our terms. A dually, or dual rear wheel truck, features two wheels on each side of the rear axle. This configuration increases payload capacity, stability, and towing performance, making them popular for hauling heavy loads. A car trailer, also known as a vehicle trailer or auto hauler, is a specialized trailer designed for transporting passenger vehicles, light trucks, and, in some cases, heavier vehicles like duallys.
Key Considerations for Dually Transport
While duallys offer significant advantages, their width and weight can present challenges when using a standard car trailer. The primary issues stem from the fact that car trailers are typically designed for narrower, lighter vehicles.
Here’s what you need to carefully assess:
- Trailer Width: This is arguably the most critical factor. The deck width between the trailer fenders must be wide enough to accommodate the dually’s outer tires. A standard car trailer might be too narrow, resulting in the tires rubbing against the fenders or even preventing the dually from fitting altogether.
- Ramp Width and Capacity: The ramps must also be wide enough to allow the dually’s tires to safely drive onto the trailer. Crucially, the ramps must have sufficient weight capacity to support the dually’s weight as it drives onto and off the trailer.
- Trailer Weight Capacity (Gross Vehicle Weight Rating – GVWR): The GVWR of the trailer indicates the maximum permissible weight, including the trailer itself and the load. The dually’s weight must be significantly less than the trailer’s GVWR to ensure safe and legal transport. Exceeding the GVWR can lead to component failure, accidents, and legal penalties.
- Fender Clearance: Even if the dually fits between the fenders, ensure there’s adequate clearance between the tires and fenders to prevent rubbing, especially during turns and over bumps.
- Tie-Down Points: Secure and robust tie-down points are crucial for safely securing the dually to the trailer. Verify that the trailer has enough tie-down points rated for the weight of the dually and that they are strategically positioned for optimal security.
- Trailer Type: Consider the type of car trailer. Open car trailers are generally more adaptable than enclosed trailers due to their open design and increased width options. Enclosed trailers may offer better protection from the elements but often have narrower interior dimensions.
- Towing Vehicle Capacity: The towing vehicle must be capable of safely towing the combined weight of the trailer and the dually. Check the towing capacity rating of your tow vehicle and ensure it’s well above the total weight.
Determining Compatibility: Measurements and Calculations
To determine if a dually will fit on a specific car trailer, you need to take precise measurements.
- Measure the width of the dually’s outer tires, from outside tire edge to outside tire edge. This is the critical width measurement.
- Measure the width between the fenders of the car trailer. This is the usable deck width.
- Compare the two measurements. The trailer’s deck width must be greater than the dually’s tire width.
- Obtain the GVWR of the car trailer. This information is usually found on a sticker near the hitch.
- Determine the empty weight (tare weight) of the car trailer. This is also usually found on the same sticker.
- Subtract the empty weight from the GVWR to find the maximum payload capacity.
- Weigh the dually. Confirm it is below the maximum payload capacity.
- Measure the ramp width. Ensure that the ramps are wide enough to safely accommodate the tires.
- Check the ramp weight capacity. Make sure it exceeds the dually’s per-axle weight rating.
Alternative Solutions: When a Standard Car Trailer Isn’t Enough
If a standard car trailer is too narrow or has insufficient weight capacity, there are alternative solutions:
- Wider Car Trailers: Some manufacturers offer car trailers specifically designed for wider vehicles, including duallys. These trailers typically have wider decks and higher weight capacities.
- Heavy-Duty Equipment Trailers: Equipment trailers, designed for transporting construction equipment and other heavy machinery, are often wider and have significantly higher weight capacities than car trailers. These are a suitable option for hauling duallys, but be sure the ramps are appropriate.
- Professional Transport Services: If you’re unsure about your ability to safely transport a dually on a car trailer, consider hiring a professional transport service. They have the experience, equipment, and insurance to handle the job safely and efficiently.
FAQs: Frequently Asked Questions About Duallys and Car Trailers
Here are 12 frequently asked questions to further clarify the nuances of transporting a dually on a car trailer:
FAQ 1: What happens if I exceed the trailer’s GVWR?
Exceeding the GVWR is extremely dangerous. It can lead to tire blowouts, axle failure, frame damage, and brake failure, all of which can result in serious accidents. It’s also illegal and can result in hefty fines.
FAQ 2: Can I use a weight distribution hitch to increase the trailer’s weight capacity?
No, a weight distribution hitch does not increase the trailer’s GVWR. It only redistributes the weight between the tow vehicle and the trailer, improving handling and stability. The GVWR is a fixed limit determined by the trailer’s construction and components.
FAQ 3: What tire pressure should I use when towing a dually on a trailer?
Consult the tire manufacturer’s recommendations for the specific tires on your dually. Generally, inflate the tires to the maximum pressure listed on the sidewall when towing a heavy load. This helps improve fuel economy and reduce tire wear.
FAQ 4: How should I secure the dually to the trailer?
Use heavy-duty ratchet straps or chains to secure the dually to the trailer’s tie-down points. Cross the straps or chains diagonally to prevent the vehicle from shifting forward, backward, or sideways. Ensure the straps are tight and properly rated for the load. Do not use bungee cords.
FAQ 5: What are the legal requirements for towing a trailer?
Towing regulations vary by state and may include requirements for trailer brakes, safety chains, lighting, and mirrors. Check the laws in your state and any states you plan to travel through to ensure compliance.
FAQ 6: Should I disconnect the dually’s batteries during transport?
While not always necessary, disconnecting the batteries can prevent accidental battery drain and reduce the risk of electrical shorts, especially during long-distance transport.
FAQ 7: What’s the best way to load a dually onto a trailer?
Backing the dually onto the trailer is often preferred, as it places the engine weight towards the front of the trailer, which can improve stability. However, follow the manufacturer’s recommendations for your specific trailer. Always use a spotter to guide you.
FAQ 8: What’s the difference between a car trailer and an equipment trailer?
Car trailers are generally lighter and designed for transporting passenger vehicles, while equipment trailers are heavier-duty and designed for transporting construction equipment and other heavy machinery. Equipment trailers typically have higher weight capacities and wider decks.
FAQ 9: Can I tow a dually with a standard passenger car?
Absolutely not. Standard passenger cars are not designed to tow heavy loads like duallys. You need a truck or SUV with a sufficient towing capacity rating.
FAQ 10: How often should I check the tie-down straps during transport?
Check the tie-down straps every few hours, especially during the first few miles of the trip. Straps can loosen due to vibration and settling.
FAQ 11: What if my dually is slightly wider than the trailer’s deck width?
Even a slight overhang is extremely dangerous. You need to find a trailer that properly fits the dually, as tires rubbing on fenders can cause tire failure and lead to accidents. Never compromise on safety.
FAQ 12: Where can I find a reputable trailer rental or sales company?
Search online for trailer rental or sales companies in your area. Read reviews, compare prices, and ask about their experience with hauling duallys. A reputable company will be able to recommend the appropriate trailer for your needs and provide valuable advice.
By carefully considering these factors and taking the necessary precautions, you can safely and successfully transport a dually on a car trailer. However, if you have any doubts, it’s always best to err on the side of caution and seek professional assistance.