Question Regarding GVW , GW, GVWR, GCWR ?

Since GVWR applies to a single unit, GCWR 80,000 lbs would be more appropriate.

Which state and I'll double check?

 

I supposed since the Fed mandate is 80K, and MOST states are 80K as max (for non permitted loads) on registration/cab cards - you'll see 80K on the side of most trucks. States that max out at 80K (and of course, charge IRP/Tag fees by that weight), define it as GROSS VEHICLE WEIGHT.

From the Florida IRP Manual Definitions section: GROSS VEHICLE WEIGHT ' The weight of the vehicle and the laden weight of the trailer or semitrailer.

And since IRP is a "universal agreement" (for states that participate) you'll find the definition the same for every participatory state.

Interesting that the "weight rating" acronyms seem to be interchangeable - with most truck dealers using the combined weight capacity of the axles (12,350+40,000 = 52,350) in advertising/specs as GVW - and the states/feds using the above definition. And good luck finding ANY manufacturer that actually publishes the CURB WEIGHT of the TRACTOR ALONE in any of their literature.

But the number on the side of the cab - has to match what's on the cab card. Which I think is why most folks use GVW -as that seems to match what most states that I've seen use on the charts for tag fees (GVW).

So, it seems that GVW is gross capacity laden. GVWR is the rating of the axle groups themselves (in the case of the tractor steers + drives - anywhere from 12K+34K to 12.35K + 40K - mainly it seems, based on load rating of the tires).
GCWR (Gross Combined Weight Rating) could be what ALL axle groups are CAPABLE of carrying - which in reality could be much more than 80K (12.35+40+40 = 92.35K or even greater in the case of 3 axle sets) and seems to be used "interchangeably" but the states & feds with GVW.

Rick

 

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Good info rick and it makes more sense. To me GVW describes more what you have than what you are capable of.

Here's a good PDF I found with each states requirements. It seems each one uses different references.


https://www.permitsplus.com/downloads/fedReg390.pdf

 

Trucks aren't 2006 Mustang GTs that are all the same. Trucks are, in essence, one off custom vehicles. I've see Pete 386's on Truck paper with empty weights in the 14's, and I'm sure I could find one at 24k right now.There is no generic answer.

 

Thanks .40Glock.

I understand there's a number of variables that go into dry weight, and they're not just cookie-cutter jobbies. Just that I haven't really been able to find even a ballpark - even on doorjamb stickers.

One I saw said 66,500 - which would kind of mean either that the combined capacity of the tractor was 66.5 (which would be weird on a steer/tandem drive) or that the difference between tractor and loaded trailer was 66.5 (which would mean the tractor weighed 13.5 - highly unlikely for a VN780).

You'd figure - minus "accessory equipment" which shouldn't really run more than a thou, one way or the other - that you could at least get a ballpark on the tractor only weight, without having to drive it off the lot to a scale. Or at least a "standard ballpark weight DRY" with standard equipment (e.g.: w/ISX or D-13 or D-16).

Interesting too, that "google-ing it" doesn't yield many answers, save the rare occasions when someone on a forum posts their scaled weight.

Florida IRP app, asks for "empty weight", which you could (obviously) only find out, by WEIGHING (DOH!).

Thanks again...

Rick

 

66500 would be based on the axles, 20k front and 46k rears, a true heavy haul truck. Like I said there is no ball bark as "everything" is a variable. The truck manufacturers build a frame and a body, now engines as well, but that hasn't always been the case. The length and thickness of the frame alone can differ the empty weight by 1,000 or more pounds. Now when you start talking aluminum hubs, 34k rears vs 46k rears, Cat vs Detroit, all the way down to the starter, radiator, sleeper, 3 vs 4 batteries, etc etc etc. Can make huge differences in empty weights.

 

Shawn, it's pretty simple. Since you're here in CA, whatever weight you register your truck at, either just a CA plate or apportioned plate, is the weight sticker you will receive to put on the side of your truck. If you want to carry up to 80K lbs, you'll have to register it for that and pay for that.

 

My 2011 Prostar has a sticker on the sun visor with the factory build weight. I don't know if other manufacturers do this.