As far as the capacities for the 2500 are concerned, they are:
Rear springs - 6000 lbs
Wheels - 3500 lbs - 7000 lbs total
Tires - 3200 lbs - 6400 lbs total
Rear Axle - 12,500 lbs (AAM stipulated that the same 11. 5" used in the Dodge Heavy Duty is rated at 12,500 in other applications without modification. )
Thanks guys, my rear axle weight loaded is 6600 so with 28570R17E tires I feel safe enough- already have about 20000mi on it with no problem. Just need new tires and don't want to buy them if the wheels are weak- anybody have experience with Bridgestones; already ranout some Toyos but am not impressed with them. Already have sway bar and air bags and Bilsteins. Funny how they build these campers weighing over the truck's limit. Mines not even a long bed.
Four years ago I did some research on capacities for towing with my 06 2500. This is what I came up with...
The 2500 and 3500 are essentially the same vehicle, with the exception of the rear spring pack (SRW). As far as the DRW is concerned, there are hub differences to accommodate six wheels, but not much else.
As far as the capacities for the 2500 are concerned, they are:
Rear springs - 6000 lbs
Wheels - 3500 lbs - 7000 lbs total
Tires - 3200 lbs - 6400 lbs total
Rear Axle - 12,500 lbs (AAM stipulated that the same 11. 5" used in the Dodge Heavy Duty is rated at 12,500 in other applications without modification. )
To increase the capacity of my vehicle for towing, I made the following modifications:
1. Firestone air bags (5000 lb capacity - 11000 lb total capacity for the rear axle)
2. Rickson Forged wheels (4500 lb capacity - 9000 lb total for the rear axle)
These mods took care of the weight bearing needs. To supplement this, I also added a mounted compressor, tank, and cockpit air gauge/switch console for the rear bags (all firestone products). I also dropped a boost and pyro gauge onto the drivers pillar.
If I were going to add anything else for a slide-in camper it would be a rear sway bar..... absolutely!!! If the slide-in is big, you will be very top heavy and will need the additional stability.
At this time I have only about 20000 miles of towing with my trailers (18000 lb cargo (my limit) and 17000 lb RV, both 5th wheel) The only problem I have encountered so far is a weak clutch. South Bend should fix this sometime in the next 12 months. The pin weight on the cargo trailer is just over 4000 lb giving me around a 7000 lb rear axle load. Not too much weight, but certainly more than the stock configuration could handle. Since my cargo trailer has a GW of 24K, I must limit the load, and always weigh prior to beginning any trip. I want to insure I stay under 26K CGTW, and within the load limits of any of the components involved.
Hope this helps.
Regardless of what you've done to your truck, you're still illegal when anywhere over 20k gross combined weight, and at 4000k pounds you're grossly over the gross weight rating - by over 100% - for your truck.
You and I both know that it's capable of hauling the loads, but you better hope you never get in an accident where the cops pull out the scales.
According to Dodge, your truck is rated for a 9000 pound gross weight with a 71xx pound curb weight, meaning extra options, driver, passengers, cargo, and trailer tongue weight is limited to under 1900 pounds combined.
To answer the question on the axle and wheel capacity... .
I called AAM and was told this axle was used in applcations up to 12,500 lbs. I took the answer at the word of the engineer, although he could have been speaking to GVW, instead of GAWR. The forged aluminum wheel question was answered by the diesel specialist and service manager at the dealership where I purchased the truck.
Either way, I don't exceed the 3200 lb limit for my (17") tires and rear axle limit of 9350 lbs that is posted for the 3500.
As far as the official party line of 3000/3100 wheel values, how is it that the wheel is instantly stronger when you put it on a one ton truck. It is the same wheel on both vehicles. The idiot that gave you this misinformation took the Dodge GAWR for the truck and divided by 2 instead of giving you the actual capacity of the wheel.
It is truly amazing that wheels can be produced without any indication of load capacity. Did DOT or whomever change the requirements so newer wheels do not have to have a permanently affixed load rating?
Illegal? By what law, in what state. Each state sets it's own standards of weight requirements. The vehicle weight tag on your vehicle is a manufacturer designation regarding weight, and only applies to your state law if the state chooses to regard it that way. I have a 12,500 lb registration for my truck, and as long as I do not exceed a federal DOT limit on a component, I am fully legal to exercise that state limit. As far as the manufacturers weight posted on on your drivers door jam, that is what they choose to display for that model and model year. If the posted weight was the max capability for the vehicle in any configuration, how can you explain an increase in GVW and CGVW on identical vehicles of different model years.
Granted, you won't go wrong by staying within the manufacturers weight limits as posted, but these numbers are not necessarily the actual limits for safe (or legal) operation. For those who think you are constrained by what the manufacturer provides, explain the fact that Dodge used to recommend that you "add" a compression brake if you planned to tow a trailer in excess of 10,000 lbs... . this was before they offered the Jake Brake. So you were in violation of the manufacturers recommended configuration if you towed a trailer that was within the limits of your posted vehicle capability without the addition of an aftermarket piece of equipment?
The bottom line is, the numbers on your spec plate are what the manufacturer will certify for that model, for that year. These limits are often limited not by strength or safety, but more by what they choose for marketing requirements based on model difference requirements and upgrade needs for future models. As far as what is legal, your state will decide that within the scope of Federal DOT limits (ie. 26K and your tire limits).
As far as telling me "I" am exceeding legal limits. You are mistaken, unless you would choose to quantify your sweeping generalization by identifying the specific state that enforces these particular requirements. The key to your failed argument is the statement "according to Dodge". Dodge does not license vehicles, it is a manufacturer, and as such does not stipulate what is lawful outside of the federal requirements for certification. The state is the governing body that ultimately decides what is legal for operation within a specific jurisdiction.
To answer the question on the axle and wheel capacity... .
I called AAM and was told this axle was used in applcations up to 12,500 lbs. I took the answer at the word of the engineer, although he could have been speaking to GVW, instead of GAWR. The forged aluminum wheel question was answered by the diesel specialist and service manager at the dealership where I purchased the truck.
Either way, I don't exceed the 3200 lb limit for my (17") tires and rear axle limit of 9350 lbs that is posted for the 3500.
As far as the official party line of 3000/3100 wheel values, how is it that the wheel is instantly stronger when you put it on a one ton truck. It is the same wheel on both vehicles. The idiot that gave you this misinformation took the Dodge GAWR for the truck and divided by 2 instead of giving you the actual capacity of the wheel.
Of course this entire thread is moot if you follow Cosmo's premise that "Regardless of what you've done to your truck, you're still illegal when anywhere" if you exceed the 6000/6100 lb axle limit, or any manufacture stipulated component limit for that matter. Using this logic, I recommend you toss your truck and buy a new 3500 DRW. Besides, you wouldn't want to be "grossly over the gross weight rating" ... . would you? :-laf
This was all I could find. It seems to apply, unless pickups are now consider passenger cars.I was talking to my FIL about it, and we are both under the impression that DOT requires wheels to be stamped with a weight rating. Its very odd these aren't.
§ 571. 110 Standard No. 110; Tire selection
and rims for motor vehicles with a GVWR
of 4,536 kilograms (10,000 pounds) or less.
S4. 4. 2. Rim markings for vehicles other than
passenger cars. Each rim or, at the option of
the manufacturer in the case of a single-
piece wheel, each wheel disc shall be marked
with the information listed in paragraphs (a)
through (e) of this S4. 4. 2, in lettering not
less than 3 millimeters in height, impressed
to a depth or, at the option of the manufacturer, embossed to a height of not less than
0. 125 millimeters. The information listed in
paragraphs (a) through (c) of this S4. 2. 2 shall
appear on the outward side. In the case of
rims of multi piece construction, the information listed in paragraphs (a) through (e) of
this S4. 2. 2 shall appear on the rim base and
the information listed in paragraphs (b) and
(d) of this S4. 2. 2 shall also appear on each
other part of the rim.
(a) A designation that indicates the source
of the rim's published nominal dimensions,
as follows:
(1) ‘‘T'' indicates The Tire and Rim Association.
(2) ‘‘E'' indicates The European Tyre and
Rim Technical Organization.
(3) ‘‘J'' indicates Japan Automobile Tire
Manufacturers'' Association, Inc.
(4) ‘‘L'' indicates ABPA (Brazil), a. k. a.
Associacao Latino Americana De Pneus E
Aros.
(5) ‘‘F'' indicates Tire and Rim Engineering
Data Committee of South Africa (Tredco).
(6) ‘‘S'' indicates Scandinavian Tire and
Rim Organization (STRO).
(7) ‘‘A'' indicates The Tyre and Rim Association of Australia.
(8) ‘‘I'' indicates Indian Tyre Technical Advisory Committee (ITTAC).
(9) ‘‘R'' indicates Argentine Institute of Rationalization of Materials, a. k. a. Instituto
Argentino de Racionalizacio´n de Materiales,
(ARAM).
(10) ‘‘N'' indicates an independent listing
pursuant to S4. 1 of § 571. 139 or S5. 1(a) of
§ 571. 119.
(b) The rim size designation, and in case of
multipiece rims, the rim type designation.
For example: 20 x 5. 50, or 20 x 5. 5.
(c) The symbol DOT, constituting a certification by the manufacturer of the rim that
the rim complies with all applicable Federal
motor vehicle safety standards.
(d) A designation that identifies the manufacturer of the rim by name, trademark, or
symbol.
(e) The month, day and year or the month
and year of manufacture, expressed either
numerically or by use of a symbol, at the option of the manufacturer. For example:
‘‘September 4, 2001'' may be expressed numerically as: ‘‘90401'', ‘‘904, 01'' or ‘‘01, 904''; ‘‘September 2001'' may be expressed as: ‘‘901'', ‘‘9,
01'' or ‘‘01, 9''.
(1) Any manufacturer that elects to express the date of manufacture by means of a
symbol shall notify NHTSA in writing of the
full names and addresses of all manufacturers and brand name owners utilizing that
symbol and the name and address of the
trademark owner of that symbol, if any. The
notification shall describe in narrative form
and in detail how the month, day, and year
or the month and year are depicted by the
symbol. Such description shall include an actual size graphic depiction of the symbol,
showing and/or explaining the interrelationship of the component parts of the symbol as
they will appear on the rim or single piece
wheel disc, including dimensional specifications, and where the symbol will be located
on the rim or single piece wheel disc. The notification shall be received by NHTSA not
less than 60 calendar days before the first use
of the symbol. The notification shall be
mailed to the Office of Vehicle Safety Compliance (NVS-222), National Highway Traffic
Safety Administration, 400 Seventh Street
SW. , Washington, DC 20590. All information
provided to NHTSA under this paragraph
will be placed in the public docket.
(2) Each manufacturer of wheels shall provide an explanation of its date of manufacture symbol to any person upon request.
Here in TN, I've asked about this several times. The answer I've gotten, is the tire and axle rating are the only thing that DOT here cares about. If you are within the limits of those, you are good to go.
I recently took a 10,300 mile trip to Alaska with my '06 3500 SRW. My total weight including camper varied between 19,800 - 20,600 lbs depending on fuel, etc. The truck itself weighed in at 11,600 lbs.
Of course I did many modifications to enhance the safety of towing heavy over rough and offroad terrain. While safety was on my mind constantly, I never had a fear of being cited as "overweight". I was within tire limit load ratings (which mean next to nothing on chinese trailer tires btw), and never had any problems crossing back and forth between countries multiple times.
--Eric