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Old 05-14-2016, 11:57 AM   #1
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Help With Deciphering Scaled Weights

I thought this would be easy but after looking at my actual truck/trailer weights and the Cat scaled weights I am more confused. Here are my scaled weights and truck weights. Looks to me I am over on my GVWR by 340 lbs. and over on rear GAWR by 60 lbs. Not sure why my truck says 7200 GVWR when I have axle capacity of 8150. Tires have 10,200 lbs. so the frame must be the limiting factor???? It also looks like I am over on payload by 280 lbs. So what do you guys come up with looking at this info ? Truck was loaded as we tow and has a fiberglass topper on it. Trailer was loaded as normal with 1/3 full fresh water tank. I have extra GCWR so I think if I just added more fresh water in the tank I can remove some tongue weight and rear axle weight. I also have a older Reese WDH with 10,000 max wt. and 1200 lbs. bars I run at 4 links from the bars. (really tight) I am thinking of upgrading to a new 14,000/1400 lbs. WDH and not need a separate sway control. Trailer tows great and truck has plenty of power so I have no issues but am concerned with safety and durability. Not sure why RV yellow sticker pic is upside down. Hopefully you can zoom in and read all these pics. Thanks for any help and/or advise.
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Old 05-14-2016, 01:39 PM   #2
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Typically run out of payload before tow rating. You have one of the best half tons on the market IMO and I would be a little concerned, but not overly concerned if it was mine. With a 1200 lb tongue weight I would check the receiver rating though. Weight distribution is spot on with almost exactly the same front axle weight.


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Old 05-14-2016, 02:05 PM   #3
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I had virtually the same truck and I was 200# over weight but within the maximum axle ratings. I drove it that way for two years without any problem. Also I quit carrying so much unneeded "stuff". If my wife HAD to bring extra I just said, "put it in the back of the trailer". Also all my tanks were always empty. All that to say you can minimize the weight. Over time some of the stuff migrated back to the truck and trailer.

Last April I bought a 3/4 ton Chevy. It has weight capacity left over.
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Old 05-14-2016, 02:34 PM   #4
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Thanks for the replies. I bought this truck just for towing. It's all I use it for and really like it. I didn't buy a 3/4 ton because I wanted the 6.2L engine and it only comes in the 1/2 ton max tow option and the towing capabilities were not that much different. I thought I had plenty of payload until I actually weighed it. I roughed out 1000 lbs. tongue weight based on dry weight and was surprised I was at 1200 lbs. What really makes me wonder is the GCWR of truck at 7200 when I have axle capacity of 8150. I can adjust cargo to get within weights. I just checked and the receiver is rated at 1100 lbs. with WDH. Looks like I am 100 lbs. over on it. I suspect my topper has a lot to do with rear truck weights being over. This is by far the fastest truck I have owned. Really fun to take out with all the nanny controls turned off and race these other trucks and blow them away with my old man truck
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Old 05-14-2016, 03:34 PM   #5
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Quote:
Originally Posted by EDABEUT View Post
Thanks for the replies. I bought this truck just for towing. It's all I use it for and really like it. I didn't buy a 3/4 ton because I wanted the 6.2L engine and it only comes in the 1/2 ton max tow option and the towing capabilities were not that much different. I thought I had plenty of payload until I actually weighed it. I roughed out 1000 lbs. tongue weight based on dry weight and was surprised I was at 1200 lbs. What really makes me wonder is the GCWR of truck at 7200 when I have axle capacity of 8150. I can adjust cargo to get within weights. I just checked and the receiver is rated at 1100 lbs. with WDH. Looks like I am 100 lbs. over on it. I suspect my topper has a lot to do with rear truck weights being over. This is by far the fastest truck I have owned. Really fun to take out with all the nanny controls turned off and race these other trucks and blow them away with my old man truck
Topper can't weigh more than 200 can it? You're scaring me about pulling my windjammer down to Florida.
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Old 05-14-2016, 04:08 PM   #6
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If you want to wonder some more my Ford truck's GVWR is 9200 and axle ratings are 5600 and 6100. GM doesn't put your engine in the 2500/3500 because it has an aluminum block. It's a great engine but not nearly as durable as the 6.0L. I would keep a close eye on your water and transmission temperatures towing that much weight. Like I said earlier, I would be concerned but not overly concerned.


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Old 05-14-2016, 09:49 PM   #7
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Quote:
Originally Posted by EDABEUT View Post
I thought this would be easy but after looking at my actual truck/trailer weights and the Cat scaled weights I am more confused. Here are my scaled weights and truck weights. Looks to me I am over on my GVWR by 340 lbs. and over on rear GAWR by 60 lbs. Not sure why my truck says 7200 GVWR when I have axle capacity of 8150. Tires have 10,200 lbs. so the frame must be the limiting factor???? It also looks like I am over on payload by 280 lbs. So what do you guys come up with looking at this info ? Truck was loaded as we tow and has a fiberglass topper on it. Trailer was loaded as normal with 1/3 full fresh water tank. I have extra GCWR so I think if I just added more fresh water in the tank I can remove some tongue weight and rear axle weight.
First, you aren't confused. You might not be happy, but you aren't confused.

I ran your numbers through my site at:
Actual Weights - Travel Trailer/Bumper Pull Weights from CAT Scales - Towing Planner

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So, yes- you're over the rear axle capacity by 60 lbs.

Yes- you're over GVWR by 340 lbs.

Yes- it is common that the GVWR is less than the steer axle + drive axle. No one knows how the GVWR is attained. Though, there are never ending theories.

The good news is that you're at 14% tongue weight and can fair to reduce that a little. I would think you could likely get under the rear axle weight. That's only 60 lbs. I wouldn't be enthusiastic about being over on that.

Basically what you're seeing is a reality for 1/2 ton trucks- especially as you add your personal touches to the truck and goodies into it. My family, our stuff, and what I've done to the truck eats a good 1,200 lbs. of payload right out of the gate (I'm a hefty guy, what can I say?).
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Old 05-14-2016, 09:51 PM   #8
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Originally Posted by KingFisher View Post
You're scaring me about pulling my windjammer down to Florida.
IMO, this is why everyone should way. It's a great learning experience.
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Old 05-14-2016, 10:37 PM   #9
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Thanks Ependydad for taking the time to run my numbers. It confirms my math was correct. It looks like I need to take at least 100 lbs. off the rear of truck which is easy to do. I am not to concerned about being over the GVWR as long as I am under the axle weights since it seems to be fudged number anyway. I am more concerned now on the factory hitch weight max of 1100 lbs. I think without changing anything just adding 15 more gallons of water in the tank will fix that. Also probably upgrading my WDH
will help since I am running a older heavier one. I would like to know how hot the rear end fluid gets.

I always keep my eye on all fluid temps when towing and have only seen my trany temp go up to 220 towing thru the Rockies on a 90 degree day.
Water temp never over 220 but this truck runs hot anyway at 200 all the time. It does have dual electric fans that helps keep it cooled down and oil and trany coolers. I am heading to the Smokey's next month so we can give it another good test. Hope to meet you all at Goshen in August.
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Old 05-15-2016, 08:26 AM   #10
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I've never weighed, and I've stared at these slips for a while and they're confusing me.
So I'll just ask.

The gross weight is 14940 on one slip and 14740 on another, then 14780 on another. I don't understand how this could change if you didn't remove anything?
Since the gross weight is over 14000 on all 3 tickets, did you just unhook while on the scales and weigh again? As in pull on scale, weigh, unhook wdh and weigh, and then unhook trailer and weigh all in one pass?

I'm trying to figure all this out before I make a trip to a scale. I thought I'd have to make 3 trips through there, one without the trailer.
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