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Bellzy 03-22-2010 08:51 PM

Max Towing Weights for the 1500
Hoping someone can help. I have an '07 Ram w/ the 5.7L, oil & trans cooler and the 3.92 rear axle. I currently tow a 26 ft Travel trailer that weighs about 5300 lbs loaded. I pull it now w/ no issues.

I'm looking to upgrade to a 30 ft Travel trailer w/ a dry weight of 6200 lbs...and a GVWR of 8300 lbs. Now I've called the manufacturer and they indicated that I have a max towing capacity of 7400 lbs!?!?! That seems too low to me given my set-up. My brother's Chevy w/ a 5.3L and 3.73 rear end has a towing capacity of 7200 lbs!

I've read some trailer forums where guys have quoted 8400 - 8700 lbs max towing but because there has been a range, I really want to try and get a professional opinion.

Can anyone provide some direction? Don't want to damage the Hemi or the tranny by taking on more than it can chew! Your help is appreciated!!

Zekery360 03-22-2010 08:55 PM

If the manufacturer said 7400, I would believe them. I have heard many stories of people pulling insane amounts of weight with their pickups, but I just wouldn't wanna risk it, especially if you are pulling it often. Once or twice might not break anything, but a couple times a month will start wrecking stuff pretty quick.

erm 03-22-2010 08:58 PM

Here's some basics on GVWR and towing capacities:

Some numbers associated with cars and trucks really aren't a mystery. In fact, they're pretty straightforward. For example, most everyone knows what fuel economy numbers are. Even horsepower and torque numbers are familiar to many these days. A vehicle's zero to sixty times are often mentioned when you're discussing a sports car, and if you're talking about a sedan, you might even be familiar with numbers that describe how much interior space that model has to offer -- numbers that describe the interior volume or the front and rear seat leg room. These numbers -- along with many, many others -- are important to understand when you're buying a car or truck. They clearly describe to you what you can expect to get for your money.

Even though all of these costs, statistics, weights and measures are published, or somehow available to consumers, there are still a few numbers that cause some confusion among new car and truck buyers. Truthfully, most people don't even know what some of these numbers really mean, or the consequences of ignoring them. One example is a vehicle's gross combination weight rating, or GCWR.

If you're ever planning to tow a trailer with your vehicle -- whether it's a car, truck or SUV -- you should be aware of your gross combination weight rating, so you should probably start by learning the definition of a GCWR. A vehicle's GCWR is a specific weight determined by the manufacturer to be the maximum weight of a loaded tow vehicle and its attached loaded trailer. The total weight of the tow vehicle and trailer should never exceed the manufacturer's listed GCWR [source: Ford Motor Company].

Similar to a vehicle's gross vehicle weight rating, or GVWR, the gross combination weight rating is a specific maximum weight limit determined by the manufacturer. The major difference is that the GCWR takes into account two individual (yet attached) vehicles -- the tow vehicle and the trailer. However, the gross combination weight rating definition doesn't really state how the weight rating is calculated. According to Ford Motor Company, the GCWR is calculated by adding the following weights together: The vehicle's listed curb weight, allowable payload, driver and passenger weight and trailer weight [source: Ford Motor Company].

It's important to remember that the GCWR is not an actual measurement of the weight of a tow vehicle and a trailer, but rather the combined maximum weight limit that the manufacturer has set for the two vehicles once attached.

The primary reason for setting a GCWR for any vehicle is safety. Overloading a tow vehicle or a trailer is dangerous enough. Overload both and you've really got a problem. Not only is a heavy load difficult to control on the road, but several other components could also be at risk. For example, the braking systems may overheat and fail, reducing or even eliminating the possibility of safely slowing or stopping your vehicle. The tires may not be able to handle the extra load, potentially causing a blow out situation. The engine and transmission in the tow vehicle may overheat due to the added strain, causing a mechanical failure. Components within the tow vehicle or trailer's suspension system could bend or even break, causing you to lose control on the road. The truth is that a variety of problems could result from overloading. Again, you should never surpass your vehicle's GCWR.

If you're going to tow a trailer, it's a smart move to play it safe by learning your vehicle's GCWR. Where can you find this information? Typically, it can be found on a label inside the vehicle's door frame, near the area where the driver's door latches. Another option is to search for the information on the Internet. Most manufacturers will publish this and other important vehicle information online.

Snowman 03-22-2010 09:05 PM

There are more factors to towing capacity than engine size and rear diff gearing. Suspension and frame come into play more on heavy hauling, tire load ratings ect. To pull the trailer you are thinking of will require a 3/4 ton or higher truck. To be legal you must not exceed your GCVW( gross combined vehicle wieght) rating. With an 8500GVW trailer you are over that limit without gear in bed and passengers.Even though your hemi has the balls to pull a heavy load the transmission and engine will be overtaxed and you will greatly accelerate wear on your drive train in general. You can find some pretty roomy light weight trailers nowadays to suit your truck.

GTyankee 03-23-2010 02:48 AM

another thing to consider is the Class rating of the hitch, Class 4 is the highest i believe

also, a 2 wheel drive vehicle can tow a bigger load than a 4 wheel drive, a 4 wheel drive is heavier, so the GVRW stays the same, but, the pulled trailer has to be lighter

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