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Old 07-23-2011, 12:14 PM   #1 (permalink)
dieseldan723
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Max Towing Capacity

I have searched for this info. and haven't been able to find it on the forum. I finally found it in my owners manual buried way in the back. I thought I would put it here for others ease of access.

The information below is for a 2003 K-2500 Crew Cab Short Box HD (4WD) also known as a 2003 GMC Sierra 2500HD Crew Cab (with Duramax and Allison Transmission).

GVWR - 9,200 lbs
GCWR - 22,000 lbs
Maximum Trailer Weight - 14,700 lbs*
GAWR (Front) - 4,670 lbs
GAWR (Rear) - 6,084 lbs

*Tongue weight should be 10% to 15% of trailer weight up to 1,500 lbs. Fifth-wheel or gooseneck kingpin weight should be 15% to 25% of trailer weight up to 3,000 lbs maximum.

Maximum Trailer Weight is limited to 12,000 lbs with weight distributing hitch.

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Old 07-23-2011, 12:15 PM   #2 (permalink)
dieseldan723
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Do tires make a difference

One thing I still don't understand is that the information above is for stock size tires. I have upgraded my tires and am told they can actually take more weight. How does that play into these numbers?

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Old 07-23-2011, 12:21 PM   #3 (permalink)
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Any manufacturer is going to go a little light on tow ratings just from a liability standpoint. Tire load rating is part of it, but a bigger part is going to be the braking. Just going from a tire load rating of "D" to "E" won't help the brakes. You can get a way bigger load moving than you can stop.
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Old 07-23-2011, 04:09 PM   #4 (permalink)
dieseldan723
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Quote:
Originally Posted by TimAT View Post
Any manufacturer is going to go a little light on tow ratings just from a liability standpoint. Tire load rating is part of it, but a bigger part is going to be the braking. Just going from a tire load rating of "D" to "E" won't help the brakes. You can get a way bigger load moving than you can stop.
Completely agree! I do have a good brake controller and the Allison Tranny is certainly a help!
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Old 07-23-2011, 06:41 PM   #5 (permalink)
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Moved to towing.
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Old 07-23-2011, 10:22 PM   #6 (permalink)
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Quote:
Originally Posted by dieseldan723 View Post
I have searched for this info. and haven't been able to find it on the forum. I finally found it in my owners manual buried way in the back. I thought I would put it here for others ease of access.

The information below is for a 2003 K-2500 Crew Cab Short Box HD (4WD) also known as a 2003 GMC Sierra 2500HD Crew Cab (with Duramax and Allison Transmission).

GVWR - 9,200 lbs
GCWR - 22,000 lbs
The difference is only 12,800. Most large 5ers will load the truck to or over the 9200.
Maximum Trailer Weight - 14,700 lbs* If you can get the truck light enough when the trailer is hooked and loaded. Then the pin weight will be too light to be stable.
GAWR (Front) - 4,670 lbs
GAWR (Rear) - 6,084 lbs
With 6,084 on the drives, the front will likely be about 4,000, your truck is over the 9,200 by about 800 lbs. ( where many of us run).

*Tongue weight should be 10% to 15% of trailer weight up to 1,500 lbs. Fifth-wheel or gooseneck kingpin weight should be 15% to 25% of trailer weight up to 3,000 lbs maximum. I believe that 3,000 number is for something likely a standard cab, short box, 2 wheel drive, gas powered truck, no passenger truck. All your options including the 5th wheel hitch work against that and all the other weight numbers the book shows. With a curb weight of 7,200 on my 2500HD, the carrying capacity of my is about 2,000 to the 9,200!!!!!

Maximum Trailer Weight is limited to 12,000 lbs with weight distributing hitch.
So, the bottom line is a bunch of compromises. If you buy a 10,000 lbs empty trailer, then add all the camping needs (groceries, clothes, fishing gear, beer, lawn chairs, and fresh water) you can easily be about 12,500 for trailer alone. But hooked to the truck, about 2500 maybe on the truck and you will be a bit heavy on the truck.
The truck will pull fine, but the problem as mentioned is stopping. Also will the aluminum rims handle the weight (they have low low weight limits)? Stock tires stamped for this 6,084/pair.
Get it loaded and balanced close, and you can do what a lot of us do.
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Old 07-24-2011, 05:25 AM   #7 (permalink)
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Quote:
Originally Posted by dieseldan723 View Post
I have searched for this info. and haven't been able to find it on the forum. I finally found it in my owners manual buried way in the back. I thought I would put it here for others ease of access.

The information below is for a 2003 K-2500 Crew Cab Short Box HD (4WD) also known as a 2003 GMC Sierra 2500HD Crew Cab (with Duramax and Allison Transmission).

GVWR - 9,200 lbs
GCWR - 22,000 lbs
Maximum Trailer Weight - 14,700 lbs*
GAWR (Front) - 4,670 lbs
GAWR (Rear) - 6,084 lbs

*Tongue weight should be 10% to 15% of trailer weight up to 1,500 lbs. Fifth-wheel or gooseneck kingpin weight should be 15% to 25% of trailer weight up to 3,000 lbs maximum.

Maximum Trailer Weight is limited to 12,000 lbs with weight distributing hitch.
Why would this be less with a weight distributing hitch??
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Old 07-24-2011, 11:15 AM   #8 (permalink)
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I believe the maximum trailer weight with the GCWR, and GAWR's F/B is the heaviest the truck can pull 5th/goose/bumper.
The max with weight distribution would be off the bumper which is lower then a 5th or goose.
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Old 07-24-2011, 07:39 PM   #9 (permalink)
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As has been noted here many times, tow capacity is the GCWR minus the weight of the TV when ready to tow.
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Old 07-25-2011, 12:34 AM   #10 (permalink)
dieseldan723
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Quote:
Originally Posted by turnpike View Post
So, the bottom line is a bunch of compromises. If you buy a 10,000 lbs empty trailer, then add all the camping needs (groceries, clothes, fishing gear, beer, lawn chairs, and fresh water) you can easily be about 12,500 for trailer alone. But hooked to the truck, about 2500 maybe on the truck and you will be a bit heavy on the truck.
The truck will pull fine, but the problem as mentioned is stopping. Also will the aluminum rims handle the weight (they have low low weight limits)? Stock tires stamped for this 6,084/pair.
Get it loaded and balanced close, and you can do what a lot of us do.
What you have described here is my exact situation. I have upgraded my rims and tires. The tire shop tells me both have a higher rating than the same stock equipment. I have upgraded suspension as well (no air bags though). I have never had any issues with slowing/stopping as I do not push it too hard.

Thanks for the info.

Dan

PS. Thanks Mod for moving the thread. I forgot about the towing sub forum!

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