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Old 12-12-2017, 04:48 PM   #1
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Heritage Glen 372RD

Looking at upgrading to a new 372rd. Has a gvwr 14,100 and hitch weight 2100 lbs or dry weight 11,150. Will a 2017 gmc 2500 Denali duramax with Timbren SES suspension upgrade be adequate to tow with. The tv has a 15,700 5th wheel rating and a gross axel rating front 5200,rear 6200.
Cheers Rick
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Old 12-12-2017, 05:06 PM   #2
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Using this calculator, that dry pin weight is likely going to be up near 2,600 lbs:
Estimating Tongue/Pin Weight from Dry Weights - Towing Planner

A bit more or less, depending on how much you pack. Up to around 3,000 lbs if you fill it to the brim at it's GVWR of 14,125 lbs.

Have you ever scaled the truck to compare it against it's tire load capacity, GAWR, and GVWR? My guess is that you'll be over on GVWR but I don't know where the axle and tire weight ratings come into play.
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Old 12-12-2017, 05:07 PM   #3
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Oh, and hold onto your hat for the onslaught of folks telling you that you're crazy to consider overloading a 3/4 ton truck and a ton of other who say you're just fine with the truck you have.

At the end of the day, you'll trigger a 15-page thread where people get heated and you're nowhere closer to knowing if your truck can (or should) handle that trailer.

Have fun. Get the popcorn ready.
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Old 12-12-2017, 06:09 PM   #4
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Originally Posted by ependydad View Post
Using this calculator, that dry pin weight is likely going to be up near 2,600 lbs:
Estimating Tongue/Pin Weight from Dry Weights - Towing Planner

A bit more or less, depending on how much you pack. Up to around 3,000 lbs if you fill it to the brim at it's GVWR of 14,125 lbs.

Have you ever scaled the truck to compare it against it's tire load capacity, GAWR, and GVWR? My guess is that you'll be over on GVWR but I don't know where the axle and tire weight ratings come into play.
As I understand the truck has a gvwr of 10,000 lbs. Gvaw front is 5200 and rear 6200 so 11,400 lbs. Since the 3500 is the same frame just added springs the Timbren SES can handle 8600 lbs. I had my current rig scaled and 5200 front, 5300 rear and 8900 trailer. The dry hitch weight is 1500 lbs so just going up 600 lbs. The 372rd has an elevated rear living room so massive storage underneath. So my theory is to offset any bedroom weight which will be directly to the pin by stuff in the rear compartments. I don't have a lot of stuff and would only add max 1500 lbs of weight so under the 14 000 lbs gross.
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Old 12-12-2017, 06:13 PM   #5
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As I understand the truck has a gvwr of 10,000 lbs. Gvaw front is 5200 and rear 6200 so 11,400 lbs. Since the 3500 is the same frame just added springs the Timbren SES can handle 8600 lbs. I had my current rig scaled and 5200 front, 5300 rear and 8900 trailer. The dry hitch weight is 1500 lbs so just going up 600 lbs. The 372rd has an elevated rear living room so massive storage underneath. So my theory is to offset any bedroom weight which will be directly to the pin by stuff in the rear compartments. I don't have a lot of stuff and would only add max 1500 lbs of weight so under the 14 000 lbs gross.
The towing planner that I linked to assumed 1,500 lbs. of stuff added and is fairly accurate.

Any chance you've weighed the truck empty? To know what your unloaded weights are for the rear axle?
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Old 12-12-2017, 06:14 PM   #6
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Quote:
Originally Posted by Rivasiuk View Post
As I understand the truck has a gvwr of 10,000 lbs. Gvaw front is 5200 and rear 6200 so 11,400 lbs. Since the 3500 is the same frame just added springs the Timbren SES can handle 8600 lbs. I had my current rig scaled and 5200 front, 5300 rear and 8900 trailer. The dry hitch weight is 1500 lbs so just going up 600 lbs. The 372rd has an elevated rear living room so massive storage underneath. So my theory is to offset any bedroom weight which will be directly to the pin by stuff in the rear compartments. I don't have a lot of stuff and would only add max 1500 lbs of weight so under the 14 000 lbs gross.
PS my current tires are goodyear wrangler 265/60 /20 E rated 3100 lbs each tire
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Old 12-12-2017, 06:17 PM   #7
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The towing planner that I linked to assumed 1,500 lbs. of stuff added and is fairly accurate.

Any chance you've weighed the truck empty? To know what your unloaded weights are for the rear axle?
No not yet will do before I decide to upgrade or not.
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Old 12-12-2017, 06:32 PM   #8
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Originally Posted by Rivasiuk View Post
No not yet will do before I decide to upgrade or not.
I think it's a worthwhile endeavor to help decide if you should upgrade or not. I'm curious where that rear axle weight rating falls in with what your expected pin weight should be (2,600 lbs. or so).
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Old 12-12-2017, 06:36 PM   #9
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Old 12-13-2017, 09:14 PM   #10
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The towing planner that I linked to assumed 1,500 lbs. of stuff added and is fairly accurate.

Any chance you've weighed the truck empty? To know what your unloaded weights are for the rear axle?
Rear Axle 3740 less GAWR 6300 = 2560. Now that 3740 includes full diesel some of our stuff, hitch and us. So 2560 is all available hitch weight.
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Old 12-13-2017, 10:52 PM   #11
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Rear Axle 3740 less GAWR 6300 = 2560. Now that 3740 includes full diesel some of our stuff, hitch and us. So 2560 is all available hitch weight.

Up above you mentioned a RAWR of 6,200 which changes your numbers slightly lower. As well, you only have 6,200 lbs of tire capacity.

I stand by my thought that this camper is going to run you 2,600 lbs of pin weight when loaded with 1,500 lbs of cargo.

Take this for what it’s worth... I am personally conservative when it comes to towing (aka: I’m considering trading my 2012 dually for a newer one due to some of the big toy haulers we are looking at). I wouldn’t like the idea of being maxed out/overloaded on the axle weight ratings and especially wouldn’t like being maxed out/overloaded on the tires.
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Old 12-18-2017, 11:22 AM   #12
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Sorry I have to add my 2 cents here. A 3/4 ton pickup is a 3/4 ton pickup no matter how you dress it up or add to it. You cannot change the GVWR of the truck. It is titled as a 10000 pound GVWR and short of putting 1 ton axles under it and retitling it, it will remain a 10000 GVWR truck. Actually the chart I find says the GVWR for you truck is 9500 pounds. You need to weigh the truck loaded and full of fuel and everybody in it and subtract that from whatever the GVWR is that on the sticker in the door frame. That will give you your payload available.
I can tell you this, a 2016 Chevy Silverado 2500HD with a Duramax has a payload of about 1792 pounds. I don’t suspect your GMC is much different. That Heritage Glen is way over the payload of my 2016 F250.
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Old 12-23-2017, 10:58 PM   #13
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For what it's worth (exactly what you are paying for it).... I towed my 15,500lb Sandpiper with a 2002 2500 Duramax. I didn't die.

I did buy a 2001 3500 dually Duramax this past year. I actually prefer pulling it with the 2500 but still use the 3500 due to a potential blowout (having the extra two tires on the ground gives me a little piece of mind).

Bottom line.... considering what you are trying to do.... I'd do it. I'll probably make my next trip with the 2500 just for fun.
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Old 12-24-2017, 08:08 AM   #14
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Oh, and hold onto your hat for the onslaught of folks telling you that you're crazy to consider overloading a 3/4 ton truck and a ton of other who say you're just fine with the truck you have.

At the end of the day, you'll trigger a 15-page thread where people get heated and you're nowhere closer to knowing if your truck can (or should) handle that trailer.

Have fun. Get the popcorn ready.
Now under further research I found that the rear axle of my GMC 2500 is a Dana 80. Going to the Dana/Spicer manufacturer website found out that the GAWR on this axel is 11,000 lbs. GM derates based on tires and suspension. So now I am more confident if I look after increasing the tires and suspension to handle another 1,000 lbs then should be good to go. Not trying to overload the truck but ratings can be misleading trying to get the consumer to put out more cash. I don't plan to pull our new big country 3560ss for a few years. Leaving it in Florida on our deeded rv lot. But just good to know if I had to move I can confidently.
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