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Old 02-19-2020, 08:30 PM   #21
JRTJH
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Skillet92,

Maybe that 3500 has helium in the tires and the 2500 has nitrogen in the tires. Enough helium could (probably wouldn't but could) lift the truck enough to give it that extra axle rating ????

If you read the owner's manual, it states (not in these exact words) that ALL the rating limitations must be followed, not "just the ones that don't put you over the rating"... It's not a "pick two/ignore one" checkerboard....
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Old 02-19-2020, 08:50 PM   #22
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The vehicle certified GVWR is the ultimate limiter...PERIOD!

When your axles provide more load capacity than the GVWR it's called load capacity reserves.

When your tires provide more load capacity than the certified GAWRs it's called load capacity reserves.

Good Night....Over & Out.
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Old 02-19-2020, 09:04 PM   #23
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It's like the guy following the truck who's driver pulled over every couple of miles. The driver would get out, bang on the side of the truck and then drive off. After doing this several times the guy following asked why he did this. The driver said he was over weight hauling chickens so he had to keep them flying.
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Old 02-20-2020, 03:31 AM   #24
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Marshall, I swear we expected more from you....
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Old 02-20-2020, 05:20 AM   #25
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Marshall, I swear we expected more from you....
Sorry to disappoint, spent the day at the prosthetic office while the DW was getting her new braces fitted for the first time. I'll try harder!
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Old 02-20-2020, 01:56 PM   #26
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If I had a dollar for every tv I see towing over their limit, I'd have enough for a new truck.
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Old 02-20-2020, 02:23 PM   #27
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Originally Posted by larry337 View Post
Sorry but you can't had the axles together to get the total. Doesn't work that way. My tires are rated for 4080 pounds each. So does that mean I can 16320 pounds? The chain is only as strong as the weakest link. Can't tell you why Dodge decided to cap it at 6000. Sorry , I know I'm being sarcastic and honestly I don't care if you pull it or not. but I do have a serious question. If you know the axle ratings so well then why didn't you just buy the 3500?
My tires are rated at 3640 my rear axle even if I go by the de-rated factory number is still over what I am loaded at. The frames, trans, engine are all the same as a SRW 3500 which has a 2700 higher GVWR. The only difference being the rear leaf springs. Why pay more for a rougher ride.

As for why I did not get a 3500. You answered the question when you said if I already know all the axle ratings. Because I do is why I opted for a 2500 that rides great and I got at a steal with less than 8000 miles. I saved 16000 off the new price for a truck that was drove for less than a year by the original owner.
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Old 02-20-2020, 02:33 PM   #28
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Originally Posted by CWtheMan View Post
The vehicle certified GVWR is the ultimate limiter...PERIOD!

When your axles provide more load capacity than the GVWR it's called load capacity reserves.

When your tires provide more load capacity than the certified GAWRs it's called load capacity reserves.

Good Night....Over & Out.
So by your reasoning the since the axles are the EXACT same the 3500 has NO load reserve for towing? Interesting.
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Old 02-20-2020, 02:38 PM   #29
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Originally Posted by Skillet92 View Post
My tires are rated at 3640 my rear axle even if I go by the de-rated factory number is still over what I am loaded at. The frames, trans, engine are all the same as a SRW 3500 which has a 2700 higher GVWR. The only difference being the rear leaf springs. Why pay more for a rougher ride.

As for why I did not get a 3500. You answered the question when you said if I already know all the axle ratings. Because I do is why I opted for a 2500 that rides great and I got at a steal with less than 8000 miles. I saved 16000 off the new price for a truck that was drove for less than a year by the original owner.
This is the sort of thinking that PI attorney's love to hear about, if their client is the plaintiff and you are the defendant .
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Old 02-20-2020, 02:48 PM   #30
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Skillet 92,
I remember researching this (axle comparisons 2500/3500) before on this website and posted the actual part numbers for the 2500 and 3500 rear axles. The part numbers came up different.
The front ends were the same (for the 4x4s) and of course the Aisin transmission had it's own rear end,if I remember this info correctly. I will try to find the post
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Old 02-20-2020, 03:00 PM   #31
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Found it:
RAM 3500
Front Axle : Part Number: 05146598AN
Supersession(s): 05146598AG; 05146598AI; 05146598AJ; 05146598AL; 05146598AM; 5146598AN
[6,000# Front Axle], [3.42 Axle Ratio], [Conventional Differential Frt Axle], [3.42 Axle Ratio], [3.42 Axle Ratio], [Conventional Differential Frt Axle].
Fits 3500 (2015 - 2018)
Rear Axle SRW-DRW: Part Number: 68282878AD
Supersession(s): 68226796AB; 68282878AB; 68226796AA; 68226796AC; 68282878AA; 68282878AC; 68235438AA
[3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle], [11.50, Dual Wheels Rear Axle], [3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle].
Fits 3500 (2016 - 2018)
Frame: SRW Part Number: 68371537AA
Supersession(s): 68273951AA; 68319456AA; 68319456AB; 68319456AC
[6.4L Heavy Duty V8 HEMI with MDS] Or [6.7L I6 Cummins Turbo Diesel Engine] Or [5.7L V8 HEMI VVT Engine].
Fits 3500 (2016 – 2018)
DRW Part Number: 68371565AA
Supersession(s): 68319982AD; 68319982AB; 68319982AA; 68274316AA; 68319982AC
[Auto Level Rear Air Suspension].
Fits 3500 (2016 - 2018)

RAM 2500
Front Axle: Part Number: 05146598AN
Supersession(s): 05146598AG; 05146598AI; 05146598AJ; 05146598AL; 05146598AM; 5146598AN
[6,000# Front Axle], [3.42 Axle Ratio], [Conventional Differential Frt Axle], [3.42 Axle Ratio], [3.42 Axle Ratio], [Conventional Differential Frt Axle]. Fits 2500 (2014 - 2018)
Rear Axle: Part Number: 05146386AL
Supersession(s): 05146386AE; 05146386AF; 05146386AG; 05146386AH; 05146386AI; 05146386AK; 68237857AA; 5146386AL[3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle].
Fits 2500 (2014 - 2018)
Frame: Part Number: 68371541AA
Supersession(s): 68273956AB; 68319460AA; 68319460AB
[6.7L I6 Cummins Turbo Diesel Engine].
Fits 2500 (2016 - 2018)


A lot of the parts are the same. The same rear end for SRW and DRW,that was a surprise for me, I thought they would be different?
RMc
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Old 02-21-2020, 09:32 AM   #32
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Quote:
Originally Posted by Skillet92 View Post
So by your reasoning the since the axles are the EXACT same the 3500 has NO load reserve for towing? Interesting.
The manufacturer gave you the numbers. It's your responsibility to stay within the numbers.

The vehicle manufacturer is not going to justify the numbers. They have certified those numbers are appropriate for that vehicle and that's as far as their responsibility goes.
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Old 02-22-2020, 07:22 AM   #33
michaelrc51
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Quote:
Originally Posted by Laredo Tugger View Post
Found it:
RAM 3500
Front Axle : Part Number: 05146598AN
Supersession(s): 05146598AG; 05146598AI; 05146598AJ; 05146598AL; 05146598AM; 5146598AN
[6,000# Front Axle], [3.42 Axle Ratio], [Conventional Differential Frt Axle], [3.42 Axle Ratio], [3.42 Axle Ratio], [Conventional Differential Frt Axle].
Fits 3500 (2015 - 2018)
Rear Axle SRW-DRW: Part Number: 68282878AD
Supersession(s): 68226796AB; 68282878AB; 68226796AA; 68226796AC; 68282878AA; 68282878AC; 68235438AA
[3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle], [11.50, Dual Wheels Rear Axle], [3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle].
Fits 3500 (2016 - 2018)
Frame: SRW Part Number: 68371537AA
Supersession(s): 68273951AA; 68319456AA; 68319456AB; 68319456AC
[6.4L Heavy Duty V8 HEMI with MDS] Or [6.7L I6 Cummins Turbo Diesel Engine] Or [5.7L V8 HEMI VVT Engine].
Fits 3500 (2016 – 2018)
DRW Part Number: 68371565AA
Supersession(s): 68319982AD; 68319982AB; 68319982AA; 68274316AA; 68319982AC
[Auto Level Rear Air Suspension].
Fits 3500 (2016 - 2018)

RAM 2500
Front Axle: Part Number: 05146598AN
Supersession(s): 05146598AG; 05146598AI; 05146598AJ; 05146598AL; 05146598AM; 5146598AN
[6,000# Front Axle], [3.42 Axle Ratio], [Conventional Differential Frt Axle], [3.42 Axle Ratio], [3.42 Axle Ratio], [Conventional Differential Frt Axle]. Fits 2500 (2014 - 2018)
Rear Axle: Part Number: 05146386AL
Supersession(s): 05146386AE; 05146386AF; 05146386AG; 05146386AH; 05146386AI; 05146386AK; 68237857AA; 5146386AL[3.73 Rear Axle Ratio], [Anti-Spin Differential Rear Axle].
Fits 2500 (2014 - 2018)
Frame: Part Number: 68371541AA
Supersession(s): 68273956AB; 68319460AA; 68319460AB
[6.7L I6 Cummins Turbo Diesel Engine].
Fits 2500 (2016 - 2018)


A lot of the parts are the same. The same rear end for SRW and DRW,that was a surprise for me, I thought they would be different?
RMc

My educated guess is that the axle tube and center section, diff and all are identical. The differences would be in the mounts for the coil or leaf springs and also the trailing arm mounts.
If you search those part numbers you can see the differences in the pics.

I'm not an expert but I know that most of the rear is identical, but there are parts that are different between the 2500/3500, Mopar needs 2 different part numbers due to differences in what I discussed above.

Sorry, not trying to continue the off topic discussion but being familiar with those axles I looked into why the part numbers were different.

In the end thats irrelevant.
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Old 02-22-2020, 08:41 AM   #34
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I guess the difference is payload. One TV mentioned on here is a RAM 2500 with 2360 lbs. of payload. My door sticker is 3822.
So all the parts are the same?
RMc
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Old 02-22-2020, 08:53 AM   #35
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I guess the difference is payload. One TV mentioned on here is a RAM 2500 with 2360 lbs. of payload. My door sticker is 3822.
So all the parts are the same?
RMc
The parts are very similar. Rear diff housing is technically different, see my previous post.

A 2500 is a class 2 vehicle so it's class limited 10k lbs GVWR.
Your payload is the weight of the truck minus the GVWR of the 2500 truck weighs 7640 lbs thus it's have a payload of 2360 lbs and GVWR of 10k lbs.

Your 3500 has a higher GVWR than a 2500. Are the parts physically the same? Pretty much but the 3500 has some small differences. But, for the most part a 2500 SRW and 3500 SRW is very close at least for Rams.

The GVWR is what limits the truck's legal capacity even though the capacity of the axles is well above the GVWR of the truck. The RAWR of the rear axle in the SRW trucks is either 6k or 6.5k lbs in the 2500 and 7k lbs in the 3500.
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Old 02-22-2020, 11:40 AM   #36
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Originally Posted by michaelrc51 View Post
The parts are very similar. Rear diff housing is technically different, see my previous post.

A 2500 is a class 2 vehicle so it's class limited 10k lbs GVWR.
Your payload is the weight of the truck minus the GVWR of the 2500 truck weighs 7640 lbs thus it's have a payload of 10k lbs.

Your 3500 has a higher GVWR than a 2500. Are the parts physically the same? Pretty much but the 3500 has some small differences. But, for the most part a 2500 SRW and 3500 SRW is very close at least for Rams.

The GVWR is what limits the truck's legal capacity even though the capacity of the axles is well above the GVWR of the truck. The RAWR of the rear axle in the SRW trucks is either 6k or 6.5k lbs in the 2500 and 7k lbs in the 3500.
The statement in red is no longer valid. Take a look at the Ford, GM and RAM 250/2500 GVW specifications on 2020 vehicles.

The GM long WB 2500 diesel 4x4 GVW is listed at 11,350 https://media.gm.com/media/us/en/che...2020.tab1.html
The Ford F250 max GVW is 10,800 https://www.ford.com/trucks/super-du...s/f250-lariat/
RAM 2500 is the only 3/4 ton manufactured in 2020 that has "held to the 10K limit for GVW. I'd suspect you'll see that line "get fuzzy" with the 2021 trucks in order to meet the "advertising best in class" numbers claimed by GM and Ford.
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Old 02-22-2020, 11:52 AM   #37
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The statement in red is no longer valid. Take a look at the Ford, GM and RAM 250/2500 GVW specifications on 2020 vehicles.



The GM long WB 2500 diesel 4x4 GVW is listed at 11,350 https://media.gm.com/media/us/en/che...2020.tab1.html

The Ford F250 max GVW is 10,800 https://www.ford.com/trucks/super-du...s/f250-lariat/

RAM 2500 is the only 3/4 ton manufactured in 2020 that has "held to the 10K limit for GVW. I'd suspect you'll see that line "get fuzzy" with the 2021 trucks in order to meet the "advertising best in class" numbers claimed by GM and Ford.


Yes, this year that 250/2500 GVWR line has changed, I prob should specified “before 2020”.
Still, same principles apply for finding your numbers.
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Old 02-22-2020, 01:22 PM   #38
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Maybe it would be a little more clear cut if we didn’t have a manufacture playing games with the GVWR numbers.
Ford will sell you an F350 SRW with a 10,000# GVWR, it also markets the F450 with pickup box as a Class 3 truck max GVWR 14,000#, cab chassis as Class 4 with a 16,000# GVWR.
This is to make the trucks less expensive to license and insure, and to skirt some crazy state rules and regulations.
An F350 DRW 14,000# GVWR will have a higher payload than a F450 with bed equipped exactly the same, as the F450 has larger stronger components!
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Old 02-22-2020, 01:55 PM   #39
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Keystone Hideout 308bhds

dry 9025#
dry pin 1820#

loaded +/- 11,000#
loaded pin +/- 2300#

This 5th is considered a "mid-profile" with a very short-bed friendly cap and no slide up front.... so, for a 5th it's pretty light up front. Tows nicely - weight to pin ratio goes up a bit when loaded just due to most storage being forward of the trailer axles.
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Old 02-23-2020, 07:41 AM   #40
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Originally Posted by rhagfo View Post
Maybe it would be a little more clear cut if we didn’t have a manufacture playing games with the GVWR numbers.
Ford will sell you an F350 SRW with a 10,000# GVWR, it also markets the F450 with pickup box as a Class 3 truck max GVWR 14,000#, cab chassis as Class 4 with a 16,000# GVWR.
This is to make the trucks less expensive to license and insure, and to skirt some crazy state rules and regulations.
An F350 DRW 14,000# GVWR will have a higher payload than a F450 with bed equipped exactly the same, as the F450 has larger stronger components!
A F-350 SRW with a GVWR of 10k lbs?? This would be an F-250, similar to what Ram did .....

Yeah, if the GVWR is the same and the truck weighs more it will have less payload.

I have a Ram 2500 CTD Limited Megacab and my payload is only 1780lbs! I went from a 1500 to a CTD 2500 and increased payload a few hundred pounds, lol.
One could argue a lot but the numbers are the numbers. My pin weight will put my over my payload number for the truck.

On a funnier note, the dealer I bought my truck from refunded me for some of the registration fees.....they registered my truck as a 5k lbs vehicle!
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