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 > 2018 GMC 3500 STD BOX 4x4 axle ratings

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ssthrd

Vancouver Island

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Posted: 02/05/21 07:40pm Link  |  Quote  |  Print  |  Notify Moderator

"Have you scaled the truck?
The 3,460# payload less a 2,700# pin would only leave 700# for passengers and hitch."

That's step #2 ( or 7--not sure). The nearest scale is an hour away, so when I'm in that area next, I'll be a little more educated.


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4x4ord

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Posted: 02/07/21 09:32pm Link  |  Quote  |  Print  |  Notify Moderator

I'd figure I've already got the truck and I've already got the trailer I might as well try them out together and see how it handles. If it's good .... it's good.


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MikeRP

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Posted: 02/07/21 10:28pm Link  |  Quote  |  Print  |  Notify Moderator

I would look at the tires, assuming they are stock size. The load capacity x 2 is usually a little bit more weight than the axle rating.

So on my Ram, I have a 7000 lb rear axle and the stock tire apacity is 3640x2 or 7280 lbs of capacity. Tires size is 275/70r18.

Grit dog

Black Diamond, WA

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Posted: 02/08/21 09:29am Link  |  Quote  |  Print  |  Notify Moderator

ssthrd wrote:

GM came thru! Good to go now..........

Front is 5600#; Rear is 7070#


As was answered a few posts earlier. Or you could have saved alot of consternation and just looked it up, since you're posting on here, presumably you have the internet available to you.

Although glad this "mystery" is solved.....
Here's a little fun query. Do you know what the axle is actually rated for? Hint, it's about 50% more than the "axle rating" you found.
What you're seeing is a rating that is based on tire/wheel ratings combined with a dose of regulatory maximums for the vehicle class the truck is in.

So what were you actually looking for? Axle rating or nebulus overall rating? You got the latter.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

Grit dog

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Posted: 02/08/21 09:32am Link  |  Quote  |  Print  |  Notify Moderator

MikeRP wrote:

I would look at the tires, assuming they are stock size. The load capacity x 2 is usually a little bit more weight than the axle rating.

So on my Ram, I have a 7000 lb rear axle and the stock tire apacity is 3640x2 or 7280 lbs of capacity. Tires size is 275/70r18.


Really? Then explain how a 3/4 ton with the same "axle" and same wheels and tires as your truck only gets a 6000-6500lb "axle rating"

That seems like more than a "little bit more weight."

Grit dog

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Posted: 02/08/21 09:34am Link  |  Quote  |  Print  |  Notify Moderator

And to clarify, while sarcastic, my last posts were an attempt to get those not in the know to try and actually understand what's going on, not "I've been calling GM and emailing them because I must know my axle rating."
Know that is a placebo compared to understanding just a "little bit" of the machine you're operating vs ignorant bliss.

Grit dog

Black Diamond, WA

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Posted: 02/08/21 09:37am Link  |  Quote  |  Print  |  Notify Moderator

ssthrd wrote:

"Have you scaled the truck?
The 3,460# payload less a 2,700# pin would only leave 700# for passengers and hitch."

That's step #2 ( or 7--not sure). The nearest scale is an hour away, so when I'm in that area next, I'll be a little more educated.


So is it payload rating or "axle rating" that one should heed?
What if you got a couple too many racks of Kokanee or Canadian in the front storage?

ssthrd

Vancouver Island

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Posted: 02/08/21 09:42am Link  |  Quote  |  Print  |  Notify Moderator

blt2ski wrote:

8000 lbs empty!?!?

That's one heavy sucker of a truck. My 05 D/A dually crew cab was 7400 empty off the production line. My 96 sw equal was 6700! Granted only a 9200 gvw.....still.

Marty


Yes. Heavy--especially against my Tundra which came in at around 6000 on the road ready to pull our TT.

I was loaded with DW, Jed, tools, cooler on the back seat, full fuel tank and most everything we would have on the road minus the 5er.

rhagfo

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Posted: 02/08/21 09:43am Link  |  Quote  |  Print  |  Notify Moderator

blt2ski wrote:

8000 lbs empty!?!?

That's one heavy sucker of a truck. My 05 D/A dually crew cab was 7400 empty off the production line. My 96 sw equal was 6700! Granted only a 9200 gvw.....still.

Marty


Yep, your is light like my DD’s 2004 Ram 3500 crew cab DRW, our 2016 left the factory at 8,589 and weighs 10,000# ready to tow!


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ssthrd

Vancouver Island

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Posted: 02/08/21 11:15am Link  |  Quote  |  Print  |  Notify Moderator

MikeRP wrote:

I would look at the tires, assuming they are stock size. The load capacity x 2 is usually a little bit more weight than the axle rating.

So on my Ram, I have a 7000 lb rear axle and the stock tire apacity is 3640x2 or 7280 lbs of capacity. Tires size is 275/70r18.


Good to know.

I have Toyo load range E good for 1850 Kg or 4070 lbs each. Lots of headroom there.

LT295-70R 18

* This post was edited 02/08/21 11:31am by ssthrd *

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