Sep-12-2007 09:05 PM
Jun-12-2017 11:50 AM
DW-gray wrote:Cummins12V98 wrote:
If anyone wants to stay at 14K you really are not going to be hauling a very large 5er.
Ford and Ram have one-ton dually trucks with 14K GVWR. Depending on the style and GVW, these trucks could realistically tow 23.3K to 27.5K fifth wheel. Are there any fifth wheel RVs with a GVWR more than that?
If anyone has a heavier 5th wheel, I hope they are towing with an MDT or HDT.
Jun-12-2017 10:00 AM
Cummins12V98 wrote:
If anyone wants to stay at 14K you really are not going to be hauling a very large 5er.
Jun-12-2017 09:23 AM
avvidclif1 wrote:
Go to here and get educated about the classes. It's not fiction or a fantasy. My CU will not finance over a Class 3. Just one thing it applies to.
https://en.wikipedia.org/wiki/Truck_classification
Jun-12-2017 08:48 AM
Jun-12-2017 06:47 AM
Jun-12-2017 05:01 AM
DW-gray wrote:
One of your points was "The 14k is to keep the truck in the class 3." How do you know that? Where is a document with that claim? Do you have a document stating that the truck in has been derated? If so, how much?
Jun-11-2017 05:38 PM
Jun-11-2017 04:35 PM
bpounds wrote:DW-gray wrote:
...by the way, 60 of the tow vehicles towing trailers exceed at least one weight safety rating.
And we all know how the highways are littered with wrecked RVs. NOT. All that statistic does is illustrate the manufacturer specs are next to meaningless.
Jun-11-2017 02:48 PM
DW-gray wrote:
...by the way, 60 of the tow vehicles towing trailers exceed at least one weight safety rating.
Jun-11-2017 01:37 PM
JIMNLIN wrote:Your opinion does not line up with SAE J2807 methodology and the Federal Motor Vehicle Safety Standards, Title 49, Section 751.105.
And then asks
If you can provide a document supporting your opinion about the GVWR of 14K, please do so. I would very much like to read it.
You talk about oranges and ask a guy to supply a document about apples.
J2807 is a series of tests to determine a GCWR recommendation and says;
Scope:
This document establishes minimum performance criteria at GCWR and calculation methodology to determine tow-vehicle TWR for passenger cars, multipurpose passenger vehicles and trucks. This includes all vehicles up to 13 000 lb GVWR. It is recommended that the performance requirements within be adopted for all vehicles with model year designation 2013 or later.**
Two items of interest ...
1. Cummins truck is 14000 lbs GVWR and isn't covered in the J2807 recommendation.
2. J2807 only effects those 13k and smaller vehicles built after around 2013.
3. J2807 is nothing regulatory in nature or carry any legal implications for any trucks on the road.
4. I see no CFR 49 751.105 regulation
Jun-10-2017 05:23 AM
Your opinion does not line up with SAE J2807 methodology and the Federal Motor Vehicle Safety Standards, Title 49, Section 751.105.
And then asks
If you can provide a document supporting your opinion about the GVWR of 14K, please do so. I would very much like to read it.
May-22-2017 07:57 PM
Cummins12V98 wrote:DW-gray wrote:Cummins12V98 wrote:
GVWR is usually not as important as axle ratings since many times they equal tire capacity.
Sorry, but I do not agree. If you would take notice, the GVWR will be exceeded before the sum of the GAWRs for normal towing setup. All owner's manuals clearly warn not to exceed the GVWR and GAWRs. Braking capacity is based on the GVWR, not the GAWRs.
Example, my RAM DRW is 14K GVWR. My RAWR is 9,750# my FAWR is 6,000#. If I load my rear axle to it's rating and don't load a single thing on my front axle I will be well over my GVWR. The 14k is to keep the truck in the class 3. If over that the insurance and licensing will be much higher. Another example the F450 is 14K. Rear axle weight will determine what can be safely towed with a 5er on most SRW's.
May-22-2017 05:24 PM
DW-gray wrote:Cummins12V98 wrote:
GVWR is usually not as important as axle ratings since many times they equal tire capacity.
Sorry, but I do not agree. If you would take notice, the GVWR will be exceeded before the sum of the GAWRs for normal towing setup. All owner's manuals clearly warn not to exceed the GVWR and GAWRs. Braking capacity is based on the GVWR, not the GAWRs.
May-22-2017 03:38 PM
May-22-2017 02:33 PM
Cummins12V98 wrote:
GVWR is usually not as important as axle ratings since many times they equal tire capacity.