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Old 07-07-2010, 11:09 AM   #1
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New 2010 GMC Sierra Towing Question

Hi Guys great site and great information!!

My question is i am just about ready to order a new company truck and i want to make sure i get the max towing capabilties out of it(comapny gas for holidaying is sweet..)

Now i am have cruised the GM site and all i can see is that i am getting a 5.3l V8 flex fuel, HD trailering package, and 3.43 gears? Whats that going to give me realistically weight wise for pulling a fifth wheel??? what will the 3.73 gears increase it by? I think they are ok with me upgrading the gears, but i don't think i will be able to swing the 6L v8. Gm site is confusing with all the different box and cab configurations. Mine should be a 1500 GMC sierra, EXT cab, Reg box, 5.3L v8, HD trailer package.

Incidently the 5th wheel we are looking at is the flagstaff 825BHSS, dry weight 7400lbs; GVWR 9400lbs; 30ft long; Hitch weight 1459lbs. We really like this model and the weight looks close. We live in bare ass praires so there are not many hils to deal with.


thanks guys..
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Old 07-07-2010, 11:41 AM   #2
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I don't know if you saw this, but check this link:

http://www.gmc.com/pdf/2010Trailering+Guide.pdf

Scroll down to page 14. Towing specs are there.

When you say a "regular" box, is that a 6 1/2' or 8'?

Also there's a difference in ratings if the truck is a 4 x 4 or not. It appears that you can't get the Max Trailering Pkg w/ the 3.42 gears.
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Old 07-07-2010, 11:44 AM   #3
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20% of 8,500 *assuming you are loading the trailer only with a thousand lbs of stuff) is 1,700 Lbs. The hitch weigth they quote is always with empty weight, and trailers never leave the factory at their published empty weight.

What is the cargo carrying capacity of the Truck ? if you are a family of four weighing 600 Lbs and nothing else in the truck, the truck needs to be able to have a cargo capacity of at least 2,300 Lbs. Please pay attention to that. The hitch mechanism will be at least couple of hundred of lbs on top of everything else in the bed of the truck.

I would definitely go for the 3.73 gears but, to me it looks like, unless the truck has a cargo capacity of at least 2,500 or more Lbs, I hope the numbers work out for you. I should add, I also hate the GM's web site

150/1500 series tow vehicles are most of the time/usually/generally inadequate to tow a 5'th wheel. Any chance to upgrade to a 2500 ?

A quick seach in the above poster's link and found this :

For 1500 Series models, the trailer kingpin weight should be up to 1500 lbs.



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Old 07-07-2010, 11:46 AM   #4
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I believe the hitch weight might be a problem. Add at least 150 lbs after loading the 5'er and you'll be over 1600 lbs. Air bags will level the truck, but they don't add to your payload capacity.
Not sure what comes with the 1500 HD package, but you will definitely want load range "E" tires. Also check the RAWR on the truck.

Just make sure you go over all the numbers closely. Add the weights of what you'll be loading (in the trailer and the tow vehicle) to the dry weights being as realistic as you can.

Good luck and happy camping!
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Old 07-07-2010, 12:14 PM   #5
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Make sure you check with a dealer about the issue of towing a 5er. I have the crew cab 5' 8' box and it can't tow a 5er. My crew cab 1500 is rated at 8500lbs for what it is worth
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Old 07-07-2010, 12:59 PM   #6
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From experience, your not going to be satisfied with the engine and gear ratio towing a 5th wheel. We had a Chev with the 5.7 engine and it was a dog. We traded to a 2500HD GMC in 2005 with the diesel engine (which is for sale) towing a 11,000 pound Montana and what a change. You will be shifting gears going up the hills and your gas millage will suffer. And besides that, i think you will be overstressing the 1500s capacities.
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Old 07-07-2010, 05:34 PM   #7
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I pull a 6000 lb Flagstaff travel trailer with a Chev 1500 with 5.3 engine and 373 gears and feel that is the absolute max that the truck will safely pull. And 6000 lbs is 351 more than the manufacture said the trailer weighed empty.
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Old 07-09-2010, 01:32 PM   #8
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Thanks guys, i think i am going to abandon my dream of pulling this 5th wheel with my new truck, and just go back to pull ing a trailer. Right now with my 2007 GMC 1500 EXT cab 4X4, i pull the 829BHSS trailer. If i pull it empty(no fluids) it pulls alright..
I wish CHevy didn't scraop there plans for a light duty diesel, that would open up a whole new world for the 1/2 ton..
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Old 07-09-2010, 07:31 PM   #9
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Before you give up on your dream, check out this site:

Fifth Wheel Weight Calculator

good luck
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Old 07-22-2010, 11:27 PM   #10
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Quote:
Originally Posted by kevsim View Post
Thanks guys, i think i am going to abandon my dream of pulling this 5th wheel with my new truck, and just go back to pull ing a trailer. Right now with my 2007 GMC 1500 EXT cab 4X4, i pull the 829BHSS trailer. If i pull it empty(no fluids) it pulls alright..
I wish CHevy didn't scraop there plans for a light duty diesel, that would open up a whole new world for the 1/2 ton..
Kevsim,

I'm glad to see your post. I had tried to email you through the forum and didn't hear from you. Perhaps I did something wrong and it didn't go through.

Anyway, I wanted to see how your Boliy gen was doing? According to your thread you've had it about a year. I want to get a quiet light gen that will power 30 amps w/o breaking the budget. The Boliy looks like it would do the job, but I'm concerned about the long term reliability. Please email me or start a new thread telling about your experience.
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