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Old 01-06-2015, 01:42 PM   #57
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This morning I was again looking at the Ram Trucks towing capacity guide, and it seems they rate a truck's max towing capacity while it is also carrying it max payload.

So I went back to my weight tickets, and see where we actually only carry about 500lbs normally in the truck, so I figure this might go as high as 1,000lbs. The max payload of my truck is 2300lbs, so by the Ram chart you could add 1300lbs to the max towing capacity.

This would get my max towing capacity with the max payload we would ever carry, up to about 10,800lbs. This is within a couple of hundred pounds of what the weight tickets indicate we are actually towing. Don't think a couple of hundred pounds either way is a big deal.

However, this does not address the fact we are over the GCWR of this truck by over 1000lbs......confusing.

But then I keep going back to the thought that at least it's much better than a minivan.
Steve,

That is not how I read the towing guide. If you open the pdf file note number 3 says "Payload and maximum trailer weight are mutually exclusive." Which I read as you can't do both at once.

Then I went to the calculator with load slider and put in the following truck,
2500 SLT, Crew cab, 6.7, 4x4 and it lists curb weight of 7700

then I added 2 passengers for 300 lbs and it set slider to 0 cargo load and it shows max tow of 17150. This give makes the truck 8000 lbs and a 25150 gcw

I then left the 2 passengers and set slide to the maximum load in the truck which is 2165lbs, or total truck weight of 10165 and it reduces the max tow to 14985 this adds up to 25150 gcw

What I did notice was that the numbers in the pdf and the numbers in the sliding calculator or not the same by a few hundred pounds, but it looks like gcwr is the governing number which is how I understand the definition.
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Old 01-06-2015, 02:45 PM   #58
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2012 Ram 2500 CTD Laramie Crew 4x4; 3.42 ratio, 68RFE AT ... we bought it new (planned as the last truck purchase) because it was the only diesel brand that did not require DEF (at the time). Our mileage was 12-14 pulling the EB25 at 55-60 mph - the hills and mountain passes were absolutely effortless ...that was BEFORE the EPA recalls for re-programming. Then, the mileage dropped off as did the power. Subsequent returns to the dealer did nothing (they didn't even complete the front end recall after 1.5 years). Now driving something different.
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Old 01-06-2015, 03:05 PM   #59
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SteveH,
Maybe this will help, maybe not, but when you go to the RAM towing site, there is a red button "LOOK UP MY VEHICLE" (2009 and newer) that will open up a popup window where you can enter your truck's VIN and it will show what RAM lists as the max payload and max towing.
Maybe it is different from the pdf you are looking at above.
Yes, Lance, that is where I got my information. Thanks.
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Old 01-06-2015, 03:35 PM   #60
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Steve,

That is not how I read the towing guide. If you open the pdf file note number 3 says "Payload and maximum trailer weight are mutually exclusive." Which I read as you can't do both at once.

Then I went to the calculator with load slider and put in the following truck,
2500 SLT, Crew cab, 6.7, 4x4 and it lists curb weight of 7700

then I added 2 passengers for 300 lbs and it set slider to 0 cargo load and it shows max tow of 17150. This give makes the truck 8000 lbs and a 25150 gcw

I then left the 2 passengers and set slide to the maximum load in the truck which is 2165lbs, or total truck weight of 10165 and it reduces the max tow to 14985 this adds up to 25150 gcw

What I did notice was that the numbers in the pdf and the numbers in the sliding calculator or not the same by a few hundred pounds, but it looks like gcwr is the governing number which is how I understand the definition.
Rick,

If you got to the Ram truck towing spec guide here: Ram Trucks - Towing Capacity Chart

Then select your truck with the body size, bed size, engine, trim level, etc., and then click on the "OPEN TOWING & PAYLOAD CALCULATOR", and then click on the slider, you will see that as you decrease the load IN the truck, the towing capacity will increase.

The slider will not let you go below one passenger, or 150lbs, but it clearly shows with a lighter load, you can tow a heavier trailer, but it also will not let you go above the GCVW rating.
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Old 01-06-2015, 04:04 PM   #61
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@crispyboy

I have a 2008 Dodge/Cummins 6.7...and my towing fuel mileage expereince in 2009, 2010 was about 13-14 towing at 60-65 mph, and about 19 not towing. Then about a year ago, the dealer replaced the catalytic converter or whatever they do, and my towing dropped to 11-12 mpg....obviously burning more fuel and producing more emissions.

It has adequate power, and as you noted, very easy to spin up the wheels....driving a truck is much like riding a motorcycle..... ya' do not really want to spin anything......

I have been told there are some exhaust modifications which can improve things dramatically... to the tune of about $1200 to $1500. Do you know anything about these?
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Old 01-06-2015, 05:03 PM   #62
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There some kits out there ,and you can remove all the emission stuff, the mileage will go up, but in some states that is illegal, you won't pass the emissions tests,also it is against the federal laws to remove it....unless you do it your self,then what if you want to trade it in ???
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Old 01-06-2015, 06:07 PM   #63
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Originally Posted by SteveH View Post
Rick,

If you got to the Ram truck towing spec guide here: Ram Trucks - Towing Capacity Chart

Then select your truck with the body size, bed size, engine, trim level, etc., and then click on the "OPEN TOWING & PAYLOAD CALCULATOR", and then click on the slider, you will see that as you decrease the load IN the truck, the towing capacity will increase.

The slider will not let you go below one passenger, or 150lbs, but it clearly shows with a lighter load, you can tow a heavier trailer, but it also will not let you go above the GCVW rating.

Steve, That is exactly where my numbers came from, see my original again, and look at the numbers for 2 people and 0 load and you can tow 17150, 2 people load of 2165 and towing is down to 14985. How is that more?

Also pdf says load and towing are mutually exclusive, you can not carry max load in the truck and tow max trailer at the same time and this the same thing the weight slider is doing.
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Old 01-06-2015, 06:07 PM   #64
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What is the FAWR and what is the RAWR?
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Old 01-06-2015, 07:23 PM   #65
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Steve, That is exactly where my numbers came from, see my original again, and look at the numbers for 2 people and 0 load and you can tow 17150, 2 people load of 2165 and towing is down to 14985. How is that more?

Also pdf says load and towing are mutually exclusive, you can not carry max load in the truck and tow max trailer at the same time and this the same thing the weight slider is doing.
I understand that, but what I originally posted that you commented on was if I reduced the load in the truck, (and I don't carry anywhere near full load) it increased the towing capacity.

"This would get my max towing capacity with the max payload we would ever carry, up to about 10,800lbs."
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Old 01-06-2015, 08:20 PM   #66
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Any around this forum those who slam the brakes more than once in 10k miles are not good drivers. In our part of the country those who go through brakes on these trucks in under 70k are not good drivers. It's a reality the OEMs must accommodate.

..

I still have factory brakes on my 1/2 ton,,, over 100K miles...


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Old 01-06-2015, 11:31 PM   #67
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And I saw 120k plus on the first set with this one. Plenty of others where this is so on the 1T. Commercial experience helps but racers sometimes learn too
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Old 01-07-2015, 06:20 AM   #68
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I have 52K on my original brakes, they still look like new, and I pulled my trailer back from Idaho last summer with no brakes!

(My dad would have said, "First liar doesn't stand a chance").

Steve, (making a joke, and NOT calling anyone a liar.)
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Old 01-07-2015, 07:11 AM   #69
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If power and fuel econ is what your looking for don't waste money on gearing changes. Look into the removal of the DPF, NO2/CAT, and muffler/resignators.

I have a 2009 Dodge 2500 4x4 Mega cab Cummins when we purchased in 2010 35000 miles stock set up we saw 19mpg on the high way unloaded and 12-13 in perfect condition towing a 11k horse trailer. I spent $500 on an H&S programmer and a stainless 4" exhaust. Removal of the DPF, NO2/CAT and the muffler/resignator removed about 150lbs of crap and opened the exhaust up. Reprograming the ECU to no longer look for the O2 sensors and EGR system I can select a gain of as much as 120hp. I run at a 70hp increase. The best side effect of freeing the engine is lower temps for the engine which helps engine life. Fuel MPG is now more inline with my 2001 Cummin, I see 24-26MPG on the highway at 65mph (air temp has the greatest effect as with any diesel, Cummins love the heat) and towing around New England with the horse trailer loaded to 7500k or the 25' FC is 15-17MPG at 62mph with a high of 19mpg when on a longer trip across upper state NY (long semi flat strech of road)

The 2007-2010 Cummins are choked by the rush to met new emision standards the new 2012 - pres are constantly getting better but the DPF and NO2 filters are still power/economy theives.

Joe
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Old 01-07-2015, 08:58 AM   #70
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To MSMOTO,

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@crispyboy

I have been told there are some exhaust modifications which can improve things dramatically... to the tune of about $1200 to $1500. Do you know anything about these?
It's a bit more than an exhaust modification but can be done for less than $1200. You must change the programming to bypass the restrictive emission equipment. This will rid the vehicle of the EGR, DPF and NOX filters. The remainder of the exhaust can stay and "test pipe" will be installed in lieu of those fore mentioned components. NOTE: The feds won't like you doing this. Things would have to be reinstalled periodically if you have local emission testing.
I have checked into this but haven't pulled the trigger yet as my truck is currently running fine, well at least after the big fix in 2013. Long story made short - the soot from the EGR on my truck took out a turbo and a DPF filter to the tune of $3500..........

EFI Live is on my wishlist........ It is about all that is left for "retuning" your diesel truck. The feds put the kabosh on the US retailers selling tunes.

Anarchy Autocal Lite
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