Weight Sticker Math Exercise

[Vic_R]

Hi all – I’m trying to make sense of all of the weight data that I have:
1 – Cat Scale Weight w/ Camper on – 10920
2 - Cargo Weight Rating Sheet – 2802
3 - GVWR (door sticker) - 11700
4 - Tire and loading (door sticker) occupants and cargo should not exceed 3668

So if I subtract the tire and loading sticker (3668) from the GVWR (11700), that means the curb weight of the truck is 8032. That seems about right on other ratings sheets I’ve seen for a diesel 4x4 crew cab so I’ll go with it. I’m assuming this is with a full tank of diesel & DEF too.

If I subtract the Cargo weight rating sheet (2802) from the occupants and cargo sticker (3668), that means they assume 5 passengers (console & bucket seats, no front bench) must weigh 866 or 173.2 each (I won’t tell my wife what Ram thinks she weighs..)

And then the final calculation, and reason I started this whole exercise, if the truck has a curb weight of 8032 and I subtract my loaded scale weight of 10920, the loaded camper is a hefty 2888 (full water tank & LP tank and truck had a full diesel and DEF tank, but no driver)

*Note this isn’t a perfect analysis because I had the tailgate off for the Cat Scale weight but I’m sure its incl in the curb weight. So the camper is probably another 50 lbs or so. Also not sure if driver is part of the curb weight but assuming no?

Did I miss anything?

[KD4UPL]

Jfet wrote:
I didn't realize a 4x4 pickup truck could be 8000 pounds curb weight. Wow. I thought a gasser is more like 5500 and diesel 6500 or thereabouts.

Are we talking F550 or something?

Trucks haven't been that light in years. I had a '96 1500 Dodge that weighed 5,300. My '07 Chevy diesel was a regular cab with no options and weighted 6,800 pounds empty.
My '05 Chevy dually crew cab is about 8,000. We just got a new 2015 Chevy 3500 at work with a utility body and ladder rack. It's about 9,000 with nothing in the bed.

OP,
Are you just trying to find the weight of the camper? Just weigh the truck empty. Then, load the camper and weigh again. That's the easy way to find camper weight.
By the way, congratulations on being under your GVWR. That's hard to do with a TC.

[ticki2]

Leeblev wrote:
Good rule is keep the weight under 80% of the GVWR.

That would be great , unfortunately if you have read many weight threads on this forum it is wishful thinking . Most trucks with TC's are over GVWR .

[Jfet]

I didn't realize a 4x4 pickup truck could be 8000 pounds curb weight. Wow. I thought a gasser is more like 5500 and diesel 6500 or thereabouts.

Are we talking F550 or something?

[Leeblev]

I agree that you are trying to over figure.
Your GVWR and Tire ratings are important for safe operation. GVWR ASSUMES everything in/on that vehicle including a toothpick.
What you need to make sure is that whatever tires you have on that rig are adequate for the TOTAL WEIGHT LOADED. Don't assume anything. Get down on your hands and knees and READ the weight rating on those tires and use them.
You should notice that when using single rear tires, the weight rating on that tire is different from the weight rating for duels on the same tire.
I agree with the poster who said to take the rig fully loaded (I don't mean what you THINK you may haul) to CAT scales and weigh. Oh yes, that includes passengers, dogs, cats, etc. Not only weigh each axle, but each tire seperately, and an overall weight. Good rule is keep the weight under 80% of the GVWR.

[Reddog1]

I have a different method.

Read the load capacity on the tires. Keep in mind, being a duelly, the capacity is not the same as a SRW.

Weigh each axle separately, as ~DJ~ suggested.

Compare the scale weight to the tire load capacity. Hopefully, the tire load capacity of each axle is greater than the weight on the axle.

The tire load capacity is typically the most obvious issue in being overloaded.

Wayne

[finsruskw]

If you weighed at a CAT scale you will already have the separate axle weights, that is unless you did not split the axles on the scale properly

[_DJ_1]

You're overthinking this. Load everything up and go back to the scales only weigh one axle at a time. Check that against your door sticker. You may have to move some stuff fore or aft.