Thought I would share my Payload reconciliation. The brochure says this Dbl Cab, diesel, 4x4 config is rated 3,010# payload. The truck's delivered yellow sticker in the door jam says 2,515#. So since I know that GM and Ford do their weighings with not full fuel and DEF tanks and I know that any installed trailer options will take away from the brochure published, I knew a CAT visit was in my future.I was prepared all along to just finish adding my 'Stuff' (nerf bars, underbed gooseball, folding bed cover, rubber mat and tailgate cover) and then filler'up with the 36 gals of diesel and take the other passenger with me to the CAT scales. The trucks GVWR is 10,000#. Subtract the CAT ticket weight and that's the real available Payload for my new fifth wheel.Comes out to 2288# when I take off the 2 passengers. That's the number that would be the new door sticker if those addons and the fuel had been on the truck when it rolled off at 2515#Curiously, that's a difference of 226# and if the truck rolled off with say only 5 gallons of diesel, the fuel add would be 200# of the 226# difference. Since I know that the individual weights of the nerf bars, goose hitch, bed cover and mats is 239# (added up shipping weights). I'm thinking the sticker already must have included more than an almost empty tanks.Really doesn't matter much to me how the sticker number is created, my important number is available payload reduced to account for me and the Mrs. (1,993#). Looks like I'll be able to safely tow many of the half-ton towables ;-) now.Oh and for the MPG here in the flat lands of Texas on this new diesel. Averaging 14.5mpg around town with no load. Averaged 19.5mpg on the 1700 mile trip home from the dealer (no load). Haven't towed anything yet so more on that later. Nice truck, glad I bought it.

Jeez... shoulda got an Ecoboost... =)

I think the yellow sticker includes full fluids.

Nice truck !Cant stop staring at those new 15 GMC trucks when they are coming at me.Just have a cool look I think!!!

op says wrote:Really doesn't matter much to me how the sticker number is created, my important number is available payload reduced to account for me and the Mrs. (1,993#). Looks like I'll be able to safely tow many of the half-ton towables ;-) now. Actually your 2500 GM truck has a 6200 RAWR. Rear axle unladen can weigh in the 2800-2900 lb range and a actual 3000+ lb payload and its also safe.

Exactly why most on this forum suggest that for a few dollars more get a 3500 SRW. More payload on the same equipment except for the springs most likely.You likely have at least 11,400# of axle rating, the best advice I can give is tow and carry what you are comfortable with.

2015 GMC 2500 Diesel Double Cab 4x4 6.6ft Bed PAYLOAD

hbillsmith
Explorer
Sep 24, 2014
Rhagfo after that statement I said "Curiously, that's a difference of 226# and if the truck rolled off with say only 5 gallons of diesel, the fuel add would be 200# of the 226# difference. Since I know that the individual weights of the nerf bars, goose hitch, bed cover and mats is 239# (added up shipping weights). I'm thinking the sticker already must have included more than an almost empty tanks". Because I had preweighed the accessories, I confirmed that the sticker did indeed include fluids.
rhagfo
Explorer III
Sep 24, 2014
APT wrote:
hbillsmith wrote:
since I know that GM and Ford do their weighings with not full fuel and DEF tanks

How do you know this? My understanding is NHTSA requires the Tire and Loading sticker to be the the weight of the vehicle as equipped from the factory full of all fluids.

Ford and GM, used "Stripper" trucks to come up with the "Max" Payload for advertising reasons not the yellow sticker.
APT
Explorer
Sep 24, 2014
hbillsmith wrote:
since I know that GM and Ford do their weighings with not full fuel and DEF tanks

How do you know this? My understanding is NHTSA requires the Tire and Loading sticker to be the the weight of the vehicle as equipped from the factory full of all fluids.
rhagfo
Explorer III
Sep 24, 2014
jus2shy wrote:
hbillsmith wrote:
Why is the GVWR not equal to the combination of the FAWR plus the RAWR? The GMC 2500 has RAWR of 6200 and FAWR of 5200. Added together that is 11400, but the same sticker also specifies GVWR as 10000, not 11400 as one would think. What happened to the missing 1400?

In the case of a 2500, it's for ensuring the vehicle meets a certain class definition. In many states, if your GVWR is over 10,000 lbs, your cost to insure and register goes up. In some states it doesn't matter. That's practically the whole impetus for the existence of the 3/4 tons truck.

That is most likely the real reason!
Think that is bad, my 2001 has axles ratings of 5,200 and 6,084 for a total of 11,284# of axle, and a 8,800# GVWR!

Insult is that the 6,084# rear axle is the total of the two standard 235/75-16E tires (3,042#), Truck can with Optional 265/75-16E's from the factory (3,415#), so the rear axle should be rated for 6,830#. I like the extra reserve of the tire capacity.
rjstractor
Nomad
Sep 24, 2014
hbillsmith wrote:
Why is the GVWR not equal to the combination of the FAWR plus the RAWR?

I would imagine its because the average truck user would not pay any attention to axle weight limits. If GVWR were the sum of front and rear axle maximums, you might have an available payload of 4500 pounds or more instead of 2800-3000. So, you would have guys who would put 4500 pounds in the back of the truck and wonder why the rear end sagged and the truck handled squirrely even though they weren't over their max payload. They would have no clue that the rear axle was overloaded by 1500 pounds.

Many commercial trucks list their GVWR as the sum of front and rear axle ratings. It's up to the user to make sure they don't exceed axle ratings.
JIMNLIN
Explorer III
Sep 24, 2014
hbillsmith wrote:
Why is the GVWR not equal to the combination of the FAWR plus the RAWR? The GMC 2500 has RAWR of 6200 and FAWR of 5200. Added together that is 11400, but the same sticker also specifies GVWR as 10000, not 11400 as one would think. What happened to the missing 1400?

Thats the marketing game at its best.
Actually out here in the real world the truck makers GVWR isn't used in any legal sense for figuring how much payload the truck can carry legally/safely.
In the case of a truck pulling a trailer just about all the hitch load sits on the trucks rear axle/tires. In many cases a trailers hitch load may unload the trucks front axles.

And its not just a 3/4 ton truck that plays the 10k game.
Example is the F350 SRW crew cab 4x4 172.4"wheel base 6.7 diesel same RAWR/FAWR/tires and wheels with a 10k or 11.2k GVWR.

Keep in mind the truck maker may choose any GVWR he wants but cannot go over the sum of the trucks GAWRs.
jus2shy
Explorer
Sep 24, 2014
hbillsmith wrote:
Why is the GVWR not equal to the combination of the FAWR plus the RAWR? The GMC 2500 has RAWR of 6200 and FAWR of 5200. Added together that is 11400, but the same sticker also specifies GVWR as 10000, not 11400 as one would think. What happened to the missing 1400?

In the case of a 2500, it's for ensuring the vehicle meets a certain class definition. In many states, if your GVWR is over 10,000 lbs, your cost to insure and register goes up. In some states it doesn't matter. That's practically the whole impetus for the existence of the 3/4 tons truck.
hbillsmith
Explorer
Sep 23, 2014
Why is the GVWR not equal to the combination of the FAWR plus the RAWR? The GMC 2500 has RAWR of 6200 and FAWR of 5200. Added together that is 11400, but the same sticker also specifies GVWR as 10000, not 11400 as one would think. What happened to the missing 1400?
hbillsmith
Explorer
Sep 22, 2014
I forgot to mention that I chose the GMC 3/4 ton double cab because it is the ONLY heavy duty truck that will fit in my garage. Seems like golf course communities don't plan garages big enough for RV afficianados.
rhagfo
Explorer III
Sep 22, 2014
Exactly why most on this forum suggest that for a few dollars more get a 3500 SRW. More payload on the same equipment except for the springs most likely.

You likely have at least 11,400# of axle rating, the best advice I can give is tow and carry what you are comfortable with.