advantage of dually truck for towing/hauling ?

Tom

Lifer
Oct 9, 1999
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What are the real advantages of dual rear wheels on a pickup truck for towing and hauling ?

Looking at towing capacity charts for some makes anyway, there doesn't seem to be n increase in capacity.
 

Raduque

Lifer
Aug 22, 2004
13,140
138
106
It redistributes the weight more evenly on the rear tires, less wear and tear on the truck, I guess.
 

Demon-Xanth

Lifer
Feb 15, 2000
20,551
2
81
Higher load capacity and better control. These days, by the time you need a dually you're in the f'ing huge range of trailers. I believe some now are required to go through the truck scales because they can exceed 28,000LBs GVWR.
 

dainthomas

Lifer
Dec 7, 2004
14,835
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I'd imagine it's for more stability and less tire wear with the gargantuan trailers those things haul.
 

Zenmervolt

Elite member
Oct 22, 2000
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It's not about towing capacity, it's about GAWR (Gross Axle Weight Rating). A dually will have a higher payload capacity and the ability to handle a higher tongue weight.

Remember that even a 10,000 pound traditional trailer should only have a 1,000 pound tongue weight. However, if you're towing a gooseneck trailer, tongue weight on a 10,000 pound trailer will be 2,500 pounds or more. Things like slide-in campers can weigh well over 4,000 pounds.

The GAWR for the rear axle on an F-350 dually is 9,000 pounds. That's absolutely huge in terms of payload capacity. The allowable tongue weight for a gooseneck trailer (also called a 5th wheel) is 4,675 pounds. The numbers for the version with single rear wheels are only 7,000 pounds rear GAWR and only 4,200 pounds allowable maximum tonge weight for a gooseneck.

Basically, unless you absolutely know that you need a dually, you probably don't. :p

ZV
 

funboy6942

Lifer
Nov 13, 2001
15,340
404
126
For hauling extra heavy loads, AND in case you have a blow out you have one tire left to get you where you need to get it fixed without wiping out your truck as you would had you been doing 65mph and had a single axle blow out with a full load.
 

Soapy Bones

Senior member
Dec 4, 2003
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My dad has used duallys for a number of years for his RV business, he feels that in addition to the capactiy that having the dual rear wheels cuts down on the side to side sway a lot more than a 3/4 ton pickup without dual rear wheels.
 

Demon-Xanth

Lifer
Feb 15, 2000
20,551
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81
Originally posted by: Zenmervolt
It's not about towing capacity, it's about GAWR (Gross Axle Weight Rating). A dually will have a higher payload capacity and the ability to handle a higher tongue weight.

Remember that even a 10,000 pound traditional trailer should only have a 1,000 pound tongue weight. However, if you're towing a gooseneck trailer, tongue weight on a 10,000 pound trailer will be 2,500 pounds or more. Things like slide-in campers can weigh well over 4,000 pounds.

The GAWR for the rear axle on an F-350 dually is 9,000 pounds. That's absolutely huge in terms of payload capacity. The allowable tongue weight for a gooseneck trailer (also called a 5th wheel) is 4,675 pounds. The numbers for the version with single rear wheels are only 7,000 pounds rear GAWR and only 4,200 pounds allowable maximum tonge weight for a gooseneck.

Basically, unless you absolutely know that you need a dually, you probably don't. :p

ZV

Actually, goosenecks differ from fifth wheels in that a fifth wheel has a pin that slides into a plate, such as the style of big rigs, while a gooseneck has an arm that extends downwards to a ball mounted in the base of the bed.
 

Zenmervolt

Elite member
Oct 22, 2000
24,514
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Originally posted by: Demon-Xanth
Originally posted by: Zenmervolt
It's not about towing capacity, it's about GAWR (Gross Axle Weight Rating). A dually will have a higher payload capacity and the ability to handle a higher tongue weight.

Remember that even a 10,000 pound traditional trailer should only have a 1,000 pound tongue weight. However, if you're towing a gooseneck trailer, tongue weight on a 10,000 pound trailer will be 2,500 pounds or more. Things like slide-in campers can weigh well over 4,000 pounds.

The GAWR for the rear axle on an F-350 dually is 9,000 pounds. That's absolutely huge in terms of payload capacity. The allowable tongue weight for a gooseneck trailer (also called a 5th wheel) is 4,675 pounds. The numbers for the version with single rear wheels are only 7,000 pounds rear GAWR and only 4,200 pounds allowable maximum tonge weight for a gooseneck.

Basically, unless you absolutely know that you need a dually, you probably don't. :p

ZV

Actually, goosenecks differ from fifth wheels in that a fifth wheel has a pin that slides into a plate, such as the style of big rigs, while a gooseneck has an arm that extends downwards to a ball mounted in the base of the bed.

You win by technicality. :p Both have much higher tongue weights than "regular" trailers though.

ZV
 

Tom

Lifer
Oct 9, 1999
13,293
1
76
thanks for the info. i need one and have one (03 F350 w/7.3 diesel), just wasn't sure about all the reasons why.

i pull all 3 kinds of trailers, that weigh up to 18,000 lbs. probably more if we actually weighed them.

stuffing a few pallets of beverages here and there adds a lot of weight.