The Boss Hog

[quote author=SuperGewl link=board=17;threadid=23787;start=0#msg224750 date=1071625435]
... The 2500 does indeed have a different axel from the 3500 ...
[/quote]

SuperGewl,
I hate to disagree but mine is a 2500 and it has the 11.5 inch rearend. The only 2500 CTD that came with the 10.5 was the SO/auto.


[quote author=turbov6joe link=board=17;threadid=23787;start=0#msg224993 date=1071666569]
One important fact that has been overlooked is that the 3500's in both the SRW and DRW have larger brake cylinders/pistons which IMO are completely necessary if your hauling/towing a BIG load.
[/quote]


turbov6joe,
I hate to disagree but the 2500 and the SRW 3500 have the exact same brakes. The 3500 DRW is the one with larger pistons. Please check the below link for the specs from DC.

http://www.turbodieselregister.com/p...ease090102.htm

The Boss Hog
(Sure is cold down here . . . ;D)

bulabula

There's a fellow here that has a SO 48RE with a 10.5. Was gonna use an old Aerosmith title but decided not to.

The Boss Hog

bulabula,
Noted and corrected.
The Boss Hog
(still learnin' . . . )

turbov6joe

Humm, the service manager and one of the lead wrenchers told me that all the 3500's have the larger cylinders no matter how many back tires it has.

smiller

The service department is the last place to go for authoritative information... :-

Regardless of how difficult it may be for everyone to accept the HO 2500 and 3500 SRW are identical in terms of the running gear, except for the overload springs. So why a 900 lb. difference in GVWR? You'll have to ask Dodge.... Hint: Ask the marketing dept, not engineering...

The point about the GVWR rating on the sticker is well taken, and as I said it is up to the individual just how much that matters to him. IMO the chance of any legal entanglements based on that one factor alone are somewhere between remote and nonexistant, but again that's up to the individual to decide...

bironside

My rear end is 3.73 not 4.10 which has dropper my GVCW to 18000 pounds whick puts me right on the line. So am I poucced or what?

smiller

I don't think anyone can make that decison for you. You are technically overweight in terms of the published GVWR for your truck, no doubt about that, but not by a huge margin. There will be no end to the number of opinions you'll receive on this subject but only you can decide whether that is acceptable to you or not.

SuperGewl

[quote author=The Boss Hog link=board=17;threadid=23787;start=15#msg225011 date=1071667567]
[quote author=SuperGewl link=board=17;threadid=23787;start=0#msg224750 date=1071625435]
... The 2500 does indeed have a different axel from the 3500 ...
[/quote]

SuperGewl,
I hate to disagree but mine is a 2500 and it has the 11.5 inch rearend. The only 2500 CTD that came with the 10.5 was the SO/auto.


[quote author=turbov6joe link=board=17;threadid=23787;start=0#msg224993 date=1071666569]
One important fact that has been overlooked is that the 3500's in both the SRW and DRW have larger brake cylinders/pistons which IMO are completely necessary if your hauling/towing a BIG load.
[/quote]


turbov6joe,
I hate to disagree but the 2500 and the SRW 3500 have the exact same brakes. The 3500 DRW is the one with larger pistons. Please check the below link for the specs from DC.

http://www.turbodieselregister.com/p...ease090102.htm

The Boss Hog
(Sure is cold down here . . . ;D)


[/quote]
Well, I'm soory to get you in an uproar , but I'm oly quoting DC themselfs, according to their info listed on their website and their specs. "ALL 2500's have the 10.5 and the 3500's have the 11.5"
Nwo what the actually come with can be very different, however I would tend to look at the specs listed in the truck's glovebox

The Boss Hog

Well I'm soory to get you in an uproar so I'll quote my glovebox:

" DRQ Axle - Rear 11.50"

The Boss Hog

smiller

Don't know how many times it needs to be repeated, but without a doubt all 2003 HO CTD 2500's have the 11.5" rear end and exact same running gear (except for the overload springs) as the SRW 3500, period, the end, regardless of what any mechanic or salesman at any dealership says. This can be verified by the link provided earlier

http://www.turbodieselregister.com/p...ease090102.htm

or... by simply looking at a 2500 and SRW 3500.

I think some confusion may come from the fact that (as was mentioned earlier) not all 2500's have the 11.5" rear end, the autos and SO have the 10.5" I believe.

Hope we can put this one to bed now.

bironside

That is right about the 10.5 rear end for my 03 2500 CTD. Does this mean the 11.5 has more breaking capacity? People say the the breaks are the same but is this just for you HOs.

pwabbott

Lack of overloads is the major problem in towing a 5er with the 2500. Add a set of air helper springs to the rear. When you don't need them, adjust the pressure to minimum. Your rear axle is rated for more than you will ever load. The tires are your limitation when you. My 2500 is rated for 20,000 GCWR. The only difference according to Dodge between 2500 and 3500 srw is the helper spring and clearance lights. There are no other differences according to Dodge. My towing rating is greater than that of the 3500, 13,250#.
My 2500 has a 11.5" rear axle.

RETOOC

When you go to weigh your truck you have to weigh the WHOLE truck and you also need to weigh just the REAR axle as well. This will tell you the weight distribution for the whole vehicle which is what you have to know. My old 92 CTD 2500 weighed 3400 lbs on the rear axle. Our 5'er had a possible tongue weight if loaded properly of 2100 lbs.. The sticker on the truck said I could carry a total of 6200 lbs on the rear axle, so I was 700 lbs to the good on the rear axle.
What you really need to know is the weight distribution on the truck alone ( total weight of truck, weight on rear axle, subtract weight of rear axle from total truck weight will give you the weight on the front axle). Then when you have the trailer on, weigh the weight on the front axle alone and the weight of the whole rig and then the trailer axles alone (the whole rig weight less the weight on the front axle of the truck and less the weight on the trailer axles will give you the weight on the rear axle with the trailer on.
Until you weigh your truck and truck and trailer this way you are only guessing and getting your self in a tizzy.

retooc

bironside

I heard that when the truck inpsection stations are closed that you can pull in and use the scale, they leave the indicator pointing out. You guys were right here are my weights!

Total    3450 kg= 7590 lbs
Rear   1310 kg= 2882 lbs
Front   2140 kg= 4708 lbs

My tires are rate for just over three thousand pounds a piece.
I am wondering about the difference between the 10.5 and the 11.5 rear ends?

bulabula

[quote author=biron link=board=17;threadid=23787;start=15#msg227683 date=1072105182]....<snip> here are my weights!

Total 3450 kg= 7590 lbs
Rear 1310 kg= 2882 lbs
Front 2140 kg= 4708 lbs

My tires are rate for just over three thousand pounds a piece.
I am wondering about the difference between the 10.5 and the 11.5 rear ends?[/quote]

For starters, according to the AAM site, it says the 10.5" is rated by AAM for almost 9,999 lbs, and the 11.5" to 10,890 lbs. (I converted kg to lbs).

On our 2500's, I think the door jam plate says that our Rear axle GAWR's are 6000 lb irregardless of what axle we have installed. Thats what my truck is listed as; I've got the 11.5".

I've read where the 3500 SRW's have a rear axle GAWR of 6150 lbs; and they all come with 11.5" rear axles. Maybe someone with a 3500 SRW can confirm. A whopping 150 lbs higher GAWR? To gain that extra 900 lb's in GVWR? Yeah, I know; springs.

My tires are rated at 3195/ea, or 6390/axle.

BTW, the 9.25" AAM 4x4 axle up front are rated at 5200 lbs on both 2500's and 3500's.

When you boil it down, there isn't much difference between the SRW HD trucks when it comes to GAWR's.