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Old 04-14-2013, 10:33 AM   #1
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Camper/truck match ?

Hello , would just like some advice from the pros !!!
I sold my camper an looking at diff. one (USED)
I have a 2007 Silverado HD 2500 Duramax 4x4 Crew Cab - completely stock ... the camper I am looking at is a 2004 Newmar American star 30BKCL .... is this a good match or to much weight for my truck ?
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Old 04-14-2013, 04:04 PM   #2
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Try this link for trailer specs:

http://www.newmarcorp.com/uploads/br...20Brochure.pdf
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Old 04-14-2013, 09:13 PM   #3
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I have a 30 ft Puma TT loaded at over 9,500 lbs. My 07 GMC 2500 duramax has no problem towing up the steeper grades. Accordingly, you won't have a problem with the weight unless you load a hell of a lot of stuff. You may have a problem with the pin weight on a fifth wheel. According to the trucks specs, the gross vehicle weight rating is a shade of 9,000 lbs. Since the truck weighs about 7,000, that would leave you with a little over a ton for people, dogs, tools, fuel, hitch, and the pin weight of the camper.
Me and my tools, misc., are over 300 lbs. Load the wife and two dogs and its over 500 lbs. So I figure I have about 1,500- 1,600 lbs in pin weight available before I'm over GVWR. Of course many a 2500 HD Duramax handles more than that. Just keep your eye on the tranny temp and keep the EGR temp below 1400.
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Old 04-14-2013, 10:10 PM   #4
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Originally Posted by 1967camshaft View Post
I have a 2007 Silverado HD 2500 Duramax 4x4 Crew Cab - completely stock ... the camper I am looking at is a 2004 Newmar American star 30BKCL .... is this a good match or to much weight for my truck ?
Your Chevy has a GVWR of 9,200 pounds. The trailer has a GVWR of 11,900 with 19.95% hitch weight. So count on hitch weight of around 2,375 pounds when the trailer is wet and loaded for a long trip.

9,200 minus 2,375 = 6,825 max weight of the wet and loaded tow vehicle before you tie onto the trailer.

Sorry, Charlie, but you're going to be overloaded when on the road with that trailer. No way can you get the weight of your wet and loaded 2500 diesel down to only 6,825 pounds before you tie onto the trailer. My wet and loaded '99.5 F-250 diesel CrewCab 4x2 weighed about 8,000 pounds before hooking up the trailer. That was with just me, one passenger, one dog, and some tools. I know Fords are heavier than GMs, but not more than a few hundred pounds heavier. So to quote you, that trailer is "too much weight for (your) truck."
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Old 04-16-2013, 08:18 PM   #5
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OK ....I have never been one to question experience, so don't take this that way. I understand the 15% 20% pin figures, an so on . So why do they put a front / rear weight that total more than the GVWR? Thanks.....
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Old 04-16-2013, 08:52 PM   #6
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Wouldn't be too bad if a load would be entirely on one axle, but it is distributed some over all of the truck. Many different parameters figure in to GVWR, many more than just axles. Mfg engrs take all that into account and come up with what the max load the truck can handle safely. Never seen a vehicle that didn't have higher total axle loads than the GVWR.
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Old 04-16-2013, 09:08 PM   #7
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OK ....I have never been one to question experience, so don't take this that way. I understand the 15% 20% pin figures, an so on . So why do they put a front / rear weight that total more than the GVWR? Thanks.....
So you can easily load the rig right up to the GVWR without getting close to the GAWR. For different purposes, you need a different weight bias. For example, with a snowplow you need extra front GAWR. For an RV trailer, you need extra rear GAWR.

My F-150 has GVWR of 7,100, front GAWR of 3,750, and rear GAWR of 3,850. The front and rear GAWRs total 7,600, but my GVWR is only 7100. So I can't load both the front and rear axles to the GAWR without exceeding the GVWR. Even though the axles are strong enough to handle more weight, the frame and braking power and perhaps some other component cannot handle more than 7,100 total weight. So the GVWR is less than the combined GAWRs.

With my TT, I might have 3260 on the front axle and 3840 on the rear axle for a GVW of 7,100. That's right up against the GVWR and the rear GAWR, but nowhere close to the front GAWR.

But if I mount a snowplow on the front, I might have 3725 on the front axle and 3375 on the rear axle for a GVW of 7,100. Right up against the GVWR again, but this time with a front axle weight bias.
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Old 04-16-2013, 11:09 PM   #8
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So why do they put a front / rear weight that total more than the GVWR? Thanks....
LOL, this is a area RV folks know little about and some get upset when the word commercial is mentioned so I'll answer your question this way.

One reason is for a nice long warranty. Now if you were to use the truck in commercial service , which uses the sum of the GAWRs, then the truck manufacturer drops the nice long warranty usually for a shorter version.

GM gives the 2500 a 6084 RAWR and a 9200 GVWR. A 5th wheel trailers pin weight adds little if any to the trucks front axle so its not a player.
I see lots of truck weights on some of the haulers web sites. The 2500 Dmax/A GMs are fairly light on the rear axle and may weigh approx 2700-2800 lbs which leaves approx 3200 lb payload. Subtract a hitch and gear leave the truck with approx 2700 lb for a "wet" pin weight. This is why IMO its best to weigh the trucks front and rear axles separately that way you know the exact weight your truck can handle.

Will your 2500 truck handle a pin weight from a 2004 Newmar American star 30BKCL ??
According to the Newmar clicky the 30 BKCL has a 11900 GVWR and a 1845 dry pin weight. Even at 20 percent your looking at 2400 lb max pin weight. IMO it looks like a good match for your 2500 GM truck.
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Old 04-17-2013, 02:06 PM   #9
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According to Ford the "Gross Axle Weight Rating is determined by the minimum component of the axle system (axles, computer-selected springs, wheels, tires) of a specific vehicle. Front and rear GAWR's will, in all cases, sum to a number equal to or greater than the GVWR for the particular vehicle."

This seems to be a difficult concept to grasp for who knows what reason. The Duramax trucks' axles and wheel bearings are rated at 10,900 lbs. by the manufacturer, AAM. The truck's rear axle load rating is based on the frame, axle, wheel bearings, springs, wheels, and tires, with the weakest link termining the final load number. While it is not easy to change out the rear axle, it is easy to upgrade the tires, which are almost always the limiting factor. Also easy enough to upgrade the leaf springs if needed to provide more lift at the rear of the truck.

I know several people with 2002-2007 Duramax 2500HD trucks and they have been pulling 11,000 to 13,500 5th-wheel trailers and boats for years all over the western USA with no problems of any kind.
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Old 04-17-2013, 02:24 PM   #10
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This seems to be a difficult concept to grasp for who knows what reason. The Duramax trucks' axles and wheel bearings are rated at 10,900 lbs. by the manufacturer, AAM. The truck's rear axle load rating is based on the frame, axle, wheel bearings, springs, wheels, and tires, with the weakest link termining the final load number. While it is not easy to change out the rear axle, it is easy to upgrade the tires, which are almost always the limiting factor. Also easy enough to upgrade the leaf springs if needed to provide more lift at the rear of the truck.
None of which changes the rear GAWR shown on the driver's door sticker, which is what the manufacturer certifies the truck for and what the weight enforcement personnel would look at, right?

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Old 06-11-2013, 07:34 PM   #11
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Well , finally have chance to reply been busy camping .
Just want to share the 30blck fit fine within the weight of my truck. I weighed my truck empty, loaded , camper empty, camper loaded. Well with in limits . It actually weighed lighter on the pin loaded than empty even with fire wood in the truck. The unit is VERY well built , I think the over weight would be a problem MAYBE if we took a lot more but we only do about 4-6 day trips which I guess doesn't add a lot of weight . Shorts and tank tops for everybody for a week does not weigh much.

The unit pulled real good too. Pulled over 1000 miles already , pulls better than the small fver I had before . Rear kitchen is great no damage to any dishes ect. The storage is assume there is enough room to put my little boys red wagon , trike, lawnmower an more in the basement with room to spare ...... thanks for all your help ....
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Old 06-19-2013, 07:34 PM   #12
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I have two friends who have 13K and 13.5K 5th wheel trailers and both are pulling with GM 2500HD Duramax trucks, one a 2002 and the other a 2005. No problems with the truck pulling either trailer all over the western USA. They added no Supersprings or airbags or anti-sway bars and used the OEM rims and standard E rated tires. They both use the Trailair kingpin and swear by them.
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