Max Pin Weight

rhagfo wrote:

IdaD wrote:

donn0128 wrote:

MFL wrote:
You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

Why?
Why is RAWR important? It is simply the load rating of a single componemt, not the sum of the total package. Same for tires? What do they have to do with the complete package ratings?
The answer is NOTHING!
The axle mfg did not assemble the vehicle. The tire mfg did not assemble the vehicle. They are not responsible for what vehicle others use their product for, as long as someone else does not overload their product thwir in the clear liability wise.
Your comments are so irrational on so many levels its no longer funny. Just sad.

The RAWR from the vehicle manufacturer on the door accounts for the axle, tire, wheel, suspension and chassis. Ditto the FAWR. The axle weight rating from the axle manufacturer is far in excess of the vehicle manufacturer axle weight rating.

I believe the axle weight rating per AAM for the rear axle on my Ram is around 11,000 lbs. The RAWR per Ram is only 6500 lbs (go to a SRW 3500 and you gain 500 lbs - stiffer rear springs being the only difference between the vehicles).

On HD trucks, stay within your (vehicle manufacturer) axle and tire ratings and you'll have no issues at all, imo.

Yep,
You want to talk some messed up numbers, just look at my 2001 Ram 2500 with Camper and tow packages.
#1. 8,800# GVWR, camper packge doesn't change that number, even though you get the 3500 springs, and lager tires with 373# more capacity each.
Front GAWR = 5,200#
Rear GAWR = 6,084# this is total capacity of the stock rear tires.

Total axle rating 11,284. the Optional tires for Camper package are rated at 3'415# ea. for a total of 13,660# capacity.

While well over the 8,880# GVWR, I am still 500# UNDER the 6,084# rear axle rating. :h

The only "add-on" to the rear suspension, is the Bilstein shocks.:)

This rig tows great.
Not a recommendation, just what works for us.

My 98 2500 RAM sat exactly like yours with a 32.5' Avion Platinum in tow combined 20,500#.

Yup...they most all are messed up

Take my 1996 K3500 Suburban. Tongue'n cheek call it a K3500 'cuz ordered it with
the snow plow prep, option #F60 and begets 1 ton front torsion bars/etc

OEM FGAWR is 4,250 and stayed the same with the F60 option. OEM 1 ton dually
has a FGAWR of 5,400 IIRC.

OEM RGAWR is 6,000 and is the same rating as the 1 ton dually of that year. AAM
rates that 10.5" diff assembly 10,000 GAWR

So should I take the OEM 8,600 GVWR to become 5,400 + 6,000 = 11,400 GVWR ???

Or take 5,400 + 10,000 = 15,400 GVWR ???

Then gotta change tires and wheels from LT class to commercial class

Then what about the brakes and a huge etc, etc, etc

Ratings are a system with weak links...but we on the outside of the design
team will NEVER know which one(s) it is...

IdaD wrote:

donn0128 wrote:

MFL wrote:
You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

Why?
Why is RAWR important? It is simply the load rating of a single componemt, not the sum of the total package. Same for tires? What do they have to do with the complete package ratings?
The answer is NOTHING!
The axle mfg did not assemble the vehicle. The tire mfg did not assemble the vehicle. They are not responsible for what vehicle others use their product for, as long as someone else does not overload their product thwir in the clear liability wise.
Your comments are so irrational on so many levels its no longer funny. Just sad.

The RAWR from the vehicle manufacturer on the door accounts for the axle, tire, wheel, suspension and chassis. Ditto the FAWR. The axle weight rating from the axle manufacturer is far in excess of the vehicle manufacturer axle weight rating.

I believe the axle weight rating per AAM for the rear axle on my Ram is around 11,000 lbs. The RAWR per Ram is only 6500 lbs (go to a SRW 3500 and you gain 500 lbs - stiffer rear springs being the only difference between the vehicles).

On HD trucks, stay within your (vehicle manufacturer) axle and tire ratings and you'll have no issues at all, imo.

Yep,
You want to talk some messed up numbers, just look at my 2001 Ram 2500 with Camper and tow packages.
#1. 8,800# GVWR, camper packge doesn't change that number, even though you get the 3500 springs, and lager tires with 373# more capacity each.
Front GAWR = 5,200#
Rear GAWR = 6,084# this is total capacity of the stock rear tires.

Total axle rating 11,284. the Optional tires for Camper package are rated at 3'415# ea. for a total of 13,660# capacity.

While well over the 8,880# GVWR, I am still 500# UNDER the 6,084# rear axle rating. :h

The only "add-on" to the rear suspension, is the Bilstein shocks.:)

This rig tows great.
Not a recommendation, just what works for us.

donn0128 wrote:

MFL wrote:
You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

Why?
Why is RAWR important? It is simply the load rating of a single componemt, not the sum of the total package. Same for tires? What do they have to do with the complete package ratings?
The answer is NOTHING!
The axle mfg did not assemble the vehicle. The tire mfg did not assemble the vehicle. They are not responsible for what vehicle others use their product for, as long as someone else does not overload their product thwir in the clear liability wise.
Your comments are so irrational on so many levels its no longer funny. Just sad.

Don, you have been on this forum long enough to know the differences between modern 3/4 ton HD trucks, compared to 1 ton SRW trucks. If you haven't figured it out, that is just sad, I will not explain it to you again!

Have a great day!:)
Jerry

donn0128 wrote:

MFL wrote:
You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

Why?
Why is RAWR important? It is simply the load rating of a single componemt, not the sum of the total package. Same for tires? What do they have to do with the complete package ratings?
The answer is NOTHING!
The axle mfg did not assemble the vehicle. The tire mfg did not assemble the vehicle. They are not responsible for what vehicle others use their product for, as long as someone else does not overload their product thwir in the clear liability wise.
Your comments are so irrational on so many levels its no longer funny. Just sad.

The RAWR from the vehicle manufacturer on the door accounts for the axle, tire, wheel, suspension and chassis. Ditto the FAWR. The axle weight rating from the axle manufacturer is far in excess of the vehicle manufacturer axle weight rating.

I believe the axle weight rating per AAM for the rear axle on my Ram is around 11,000 lbs. The RAWR per Ram is only 6500 lbs (go to a SRW 3500 and you gain 500 lbs - stiffer rear springs being the only difference between the vehicles).

On HD trucks, stay within your (vehicle manufacturer) axle and tire ratings and you'll have no issues at all, imo.

Simple, load your truck with bodies, hitch and everything you typically do for towing. Go to the scales, what does your rear axle weigh? Subtract that # from your MAX load rating of your rear tires. Now take 25% of the GVR of a 5er you are looking at. If pin number is lex than what capacity you had left on the rear axle you are good to go. This is for SRW trucks.

MFL wrote:
You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

Why?
Why is RAWR important? It is simply the load rating of a single componemt, not the sum of the total package. Same for tires? What do they have to do with the complete package ratings?
The answer is NOTHING!
The axle mfg did not assemble the vehicle. The tire mfg did not assemble the vehicle. They are not responsible for what vehicle others use their product for, as long as someone else does not overload their product thwir in the clear liability wise.
Your comments are so irrational on so many levels its no longer funny. Just sad.

You understand the numbers, and yours are correct. IMO, even though I am not, many people towing FWs exceed the GVWR of the tow vehicle. I have no problem with this on a 3/4 ton truck, within reason, say 500 lbs or less. The important number is the RAWR, or tire max load.

In your case, I would not be worried about adding 2,200 lbs of pin wt, plus a 200 lb hitch, as long as you don't add any additional heavy items to the bed. This will put you over GVWR, but well under rear axle and tire rating.

Jerry

newrver327 wrote:
Some addition information on my truck. Also thanks for your information.

If you want to take the safe route, look on the driver's door sill for a yellow bordered placard, it will list the tire pressures and also state the maximum payload the truck can safely carry which includes all fluids, people, tongue/pin weights.

This is from my RAM 3500 Cummins, 4x4 CC SRW



I'm curious what your placard shows for payload, I would like to compare that number to old-biscuits math and see how that works out.

Some addition information on my truck.

Rear tire load rating is 3240lbs.x 2= total 6480lbs.

Front axle rating 4800lbs.
Front axle load 4160lbs.

Rear axle rating 6000lbs.
Rear axle load 2760lbs.

Also thanks for your information.