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Old 07-20-2018, 09:18 PM   #1
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2013 21SS tongue weight - What the fudge...

Ok, I'm having a hard time figuring this out...or at least accepting it.

I would've liked to get 3 different weighs as is best in order to know all the weights involved, but currently I only have the one weight - Hitched up and loaded, WDH adjusted according to mfr. I knew I was going to be close to my truck's limits, but this was unexpected.

Here are the numbers...

Steer - 3,080 (3,400 FAWR)
Drive - 3,740 (3,500 RAWR)
Truck GVWR - 6,200

620LB over GVWR, 240LB over RAWR.

Trailer axles - 4,640

I also know the empty truck weight with me in it is roughly 5,130LB. That left 1,070LB for everything else. Assuming the trailer is loaded up to around 5,200LB, that would be around 625LB on the hitch without bars (I have 1000/10000 bars with my E2) or about 412LB with the bars on, leaving 658LB for wife, 2 kids, dog, and the shell (About 500LB in all).

Before we bought the 21SS I did the math based on ~12% of the trailer GVWR being on the hitch and knew we'd be close but should be just under. So now I'm at a loss, how did I end up 620+ pounds over the MOST of what I thought I'd ever see? Is the 21SS really putting 18% on the hitch and is the rated cargo capacity much less than posted with the shipping weight being extremely far off?! There is NO way we have that much stuff in the trailer in front of the axles. There's just no room.

I've had a long day (and a long 3 weeks, we just towed this combo 5,700 miles over the past 3 weeks) and maybe I'm not thinking straight. I never would have thought I'd need an F-150 with the HDPP or a 3/4 ton truck (1,900+ LB payload capacity with a crew cab) to tow this 21SS, my wife, 2 kids, and a 45LB dog.

My truck doesn't even look overweight just sitting there all hitched up and I weighed twice during the trip thinking I got a bad weigh the first time early on in the trip.

What am I missing? Even making adjustments to the WDH isn't going to fix this. I'm at a loss as to where all that extra weight came from.
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Old 07-21-2018, 03:11 AM   #2
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I think I may have an idea of whatís going on, while the front height was returned to the correct level I didnít measure where the dealer had installed the L brackets. I think they may be too far forward and that would definitely cause me problems with weight on the rear and not getting proper weight distribution.

I hope thatís the case because I just couldnít see how the weight could be so far off from what was expected.
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Old 07-21-2018, 03:50 AM   #3
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How does it tow after that 5700 mile evaluation? You're perhaps overthinking this? At or slightly over the TV's GVWR will not relegate you to the fiery pit. It's how you pull the rig and how it handles that you need to pay attention to.
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Old 07-21-2018, 09:01 AM   #4
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Originally Posted by kandl View Post
How does it tow after that 5700 mile evaluation? You're perhaps overthinking this? At or slightly over the TV's GVWR will not relegate you to the fiery pit. It's how you pull the rig and how it handles that you need to pay attention to.


If I didnít weigh it then I never would have guessed. It towed fine, though looking at the frame I can tell the rear bump stops have made contact since those spots are clean.

My theory about the bracket position didnít pan out. The instructions said 24-27 inches from coupler center. They are right at 25Ē.
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Old 07-21-2018, 09:18 AM   #5
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Diesels are heavier than gas. I'm sure you've lost a lot of payload to the diesel.
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Old 07-21-2018, 09:21 AM   #6
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2013 21SS tongue weight - What the fudge...

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Originally Posted by rockfordroo View Post
Diesels are heavier than gas. I'm sure you've lost a lot of payload to the diesel.


Nope, not an issue with the Colorado/Canyon. GVWR on the diesel is increased by 200LB over the gas. The 2.8L diesel isnít a big weight increase over the V6 like the diesel weight increase over the gas in the full-size trucks.

The gas V6 weighs around 370LB and the diesel weighs 520LB. So I actually have 50LB more payload than a comparable gas truck.
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Old 07-21-2018, 09:30 AM   #7
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Get everyone in the truck, throw the hitch and bars in back, fill it with fuel and weigh it. Go from there. That will take the guess work out of it.
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Old 07-21-2018, 10:03 AM   #8
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Originally Posted by DieselDrax View Post
Ok, I'm having a hard time figuring this out...or at least accepting it.



I've had a long day (and a long 3 weeks, we just towed this combo 5,700 miles over the past 3 weeks) and maybe I'm not thinking straight. I never would have thought I'd need an F-150 with the HDPP or a 3/4 ton truck (1,900+ LB payload capacity with a crew cab) to tow this 21SS, my wife, 2 kids, and a 45LB dog.

What am I missing? Even making adjustments to the WDH isn't going to fix this. I'm at a loss as to where all that extra weight came from.
Take some stuff out of the truck and put in the trailer behind the axles also move some stuff aft in the trailer doesn't take allot to change the weight at the tongue it not one for one ratio. Maybe you actually want a larger truck and your mind is playing tricks on you. Your last statement rings true when I get on the bathroom scale. LOL
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Old 07-21-2018, 10:21 AM   #9
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2013 21SS tongue weight - What the fudge...

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Originally Posted by SeaDog View Post
Take some stuff out of the truck and put in the trailer behind the axles also move some stuff aft in the trailer doesn't take allot to change the weight at the tongue it not one for one ratio. Maybe you actually want a larger truck and your mind is playing tricks on you. Your last statement rings true when I get on the bathroom scale. LOL


Thereís not really much space to store much behind the axles. Basically the bathroom that we do store things in and a narrow wardrobe closet which we put most of our clothes in. All the other available storage areas and open floor with the slide in are either over or in front of the axles.

Donít want a new truck, either. Just have no idea why the weights are so far from what I was expecting.

I didnít have such a discrepancy with the 31-foot TT we had with a half ton truck but that had more room and was easier to get it loaded properly.
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Old 07-21-2018, 11:35 AM   #10
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What is your battery setup? I bet you could lose almost 150 pounds replacing the lead acid for a li-po4 that is lighter and could be installed inside in the back that would be about $1000 but pay for itself in the end. Also the water tank is probably almost 300 pounds full and in the first foot of the box. Keeping that dry would be another more like 400 pounds off the hitch. Obviously anything heavy in that front compartment should go. We have cast iron pots and even a BBQ in there but I'm happy with 1000 pounds on the hitch, I believe the more hitch weight the better as long as you are within limits. In the end I think your setup is fine. I would look at some timbrens for the rear and even try and get 100 pounds more transferred with the hitch. Maybe go 1/2 tank of water and I plan on doing the battery mod just for the improvement in boondocking.
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