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Old 08-03-2017, 12:41 AM   #1 (permalink)
bjadamsr6
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2016 3500 SRW

I apologize for the question but I can't seem to find my answer.

The wife and I recently bought a 8800 pound 33 ft travel trailer. We were going to tow it with our suburban but I decided to just get a truck and not wear out the suburban towing at its max. We ended up buying a 2016 2500 CC SB LTZ 4x4 because I got a screaming deal on it. My last truck was a 3500 SRW and wanted another one but couldn't locate one at a good price.

Well, we now have decided we want to upgrade to a 5th wheel and probably a toy hauler. After a ton of reading I have realized I've screwed myself by getting the 2500. Now for the question.

What exactly are the differences between a 2500 and 3500 SRW. When I had my 2008, the only difference was a overload spring in the rear leafs. Is this still true? If I add the overload spring will I gain all the capacity of a 3500 SRW

Before anyone says something, I know this won't legally allow me to tow or carry more. But if the truck can safely do it, that's another story.

Also, can someone with a 2016 3500 SRW post/send me a pic of the weight sticker in the door.

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Last edited by bjadamsr6; 08-03-2017 at 12:42 AM.
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Old 08-03-2017, 08:29 AM   #2 (permalink)
dmax3500
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diff in 2500-3500 is the rear springs,3500 has 1-2 leaves more[including an over-load ],you can add 3500 factory springs,they run about $400-500 for the parts and the holes are in your frame already,i was going to do this to my 2013 2500,but didn't yet

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Old 08-05-2017, 11:45 PM   #3 (permalink)
bjadamsr6
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Anyone have a 2016 3500 srw they can post a pic of the weight sticker?
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2016 Silverado 2500, D/A, CC, SB, 4x4
Black Billet Badges, PCV Re-route Rigid Fog Lights and Backup Lights

SOLD
2008 Silverado 3500 SRW, D/A, CC, LB, 4X4
Nor Cal Truck Installed: Cognito 7-9
Amp Research Steps, N-Fab Pre Runner Light Bar, Edge Insight w/ EGT probe, MBRP 4" Exhaust, BD Exhaust Manifold, EFI Live, Trans Go Jr.,6000k HIDs

"The democracy will cease to exist when you take away from those who are willing to work and give to those who are not."

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Old 08-06-2017, 12:31 AM   #4 (permalink)
enahs
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I am towing a 13K 5er with a 2007, 3500 DRW. IMHO, there's much more to consider than the weight rating of the truck with respect to the pin weight of the 5er. Having been at this for many years, I wouldn't do it with SRW, especially a 2500. But that's my 2 cents and personal view.
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Old 08-09-2017, 10:21 AM   #5 (permalink)
Coolbreeze
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I looked into this in depth myself. The bottom springs are also different from 2500 to 3500. The bottom springs on the 2500 are 5 leaf and 4 leaf on the 3500. It does look very easy to add the 3500 overload springs though. I just can't say what the difference in the bottom springs will feel like. Are the 2500 5 pack springs heavier rated then the 4 pack of 3500 springs?? This I don't know but you would think that 5 springs are rated higher than 4 springs. Then there could be an issue of clearance. Does adding the 3500 overload springs have the same clearance as the 2500 Spring pack??? That I can't say.

My 2500 drops about 1 1/2" for a pin weight of 2200 lbs so it levels with that weight. I suspect if you do the overload spring that you would be ok up to a 2500 pin weight but you would then be drastically over the 10K lb GVWR. I bet you would weigh about 10,700 to 11,000 lbs GVW in truck depending on how the 5'er is loaded along with who or what is in the truck.

If you want to be less limited in the 5'er you buy , I would bite the bullet and replace both springs in the rear and make it a "true 3500". Also if you have 20" wheels those have to be replaced with 18" wheels. Then if you ever ran into trouble you could say you did everything that GM did to make the 2500 into a 3500. I believe that is legit as it shows you made every effort to comply.

The gentleman who posted above does have a point in the dually issue but the difference in a '07 SRW and a '17 SRW is night and day difference. The frame and everything on the '17 is way more capable then the '07 vintage trucks as I used to have a '06 LBZ. No comparison at all between the two. My '06 dropped way more with this trailer and I had to add airbags. Although many people love air bags they are a band aid. The right way to do it is a progressive spring set just like the 3500 has. Un-loaded the overload springs arn't engaged, loaded they are. Airbags always have to have 10 lbs of air in them so they are always engaged and then also give you up to 1" of ride height in the rear when un-loaded. There are also Hellwig and Super Springs available which are progressive after market springs. I may go this route some day but I'm fine with my 1 1/2 drop.

I don't have the door sticker of a 3500 but you can look up the specs easily. The GVWR of a 3500 is 11,600 lbs and a 2500 is 10,000 lbs. If I'm not mistaken the 3500 has a Rear axle rating of 7000 lbs versus 6200 lbs for the rear on the 2500.
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Last edited by Coolbreeze; 08-09-2017 at 10:41 AM.
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Old 08-09-2017, 11:31 AM   #6 (permalink)
enahs
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Cool, you may be right about the difference. However, the mfg. specs would tell the story — not to overlook tire ratings. But aside from carrying the pin weight easily or not, DRW add safety and considerable stability.
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Old 08-09-2017, 05:53 PM   #7 (permalink)
enahs
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Just checked the door sticker on my '07. CC, 4x4, DRW. Duramax. GVWR is 11,400. The GVWR is 8200. According to the original dealer/mfg. literature for '07, those numbers are higher for a 2 WD, CC, 3500 and still higher for a 2WD, std. cab 3500 — but not by a lot.
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Old 08-10-2017, 02:19 AM   #8 (permalink)
bjadamsr6
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I do have the 20s unfortunately. I was concerned about that. Is the weight rating stamped on the wheel somewhere? I know the tire has it on the sidewall. I was thinking of airbags but like the idea of also having the support of the rated springs.
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2016 Silverado 2500, D/A, CC, SB, 4x4
Black Billet Badges, PCV Re-route Rigid Fog Lights and Backup Lights

SOLD
2008 Silverado 3500 SRW, D/A, CC, LB, 4X4
Nor Cal Truck Installed: Cognito 7-9
Amp Research Steps, N-Fab Pre Runner Light Bar, Edge Insight w/ EGT probe, MBRP 4" Exhaust, BD Exhaust Manifold, EFI Live, Trans Go Jr.,6000k HIDs

"The democracy will cease to exist when you take away from those who are willing to work and give to those who are not."

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Old 08-10-2017, 12:27 PM   #9 (permalink)
Coolbreeze
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It isn't the wheels per se it is the tires. 18" and 20" is roughly the same diameter tire but with the rim 2" larger on the 20's you get less air volume and hence less capacity. I think it is 6200 lbs roughly but I'm quite a bit under that.

I'm telling ya, airbags are a bandaid, they are not progressive and many will leak and now they cost near $500 which is probably what you could do the overload springs for. If they were the right way then GM or Ford or Dodge could have thrown them on their 2500's and say hey now you have a 3500.

You could do trial and error. Put the factory overload springs on the 2500 and see how they work. To me with the lower spring pack having 5 leaves and taller it would seem to me the overload springs would be loaded sooner or with less weight. Whether or not that causes a problem is something you could test. I suspect they will work out fine. You should be able to find stock 18"s easily. The way people upgrade their wheels there must be 100's of sets available in the forum. You can go to a dealer and see the difference and maybe measure to see the difference of the height of the lower spring packs.

Or you could go get a 5'er with a pin at 2200 lbs and kind of be setup like mine. I never wanted anything longer 35' and I have a Cedar Creek Silverback which is an upscale 5'er just not the most upscale 5'er. I have nearly all of the upscale features anyways. Leather recliners, upscale bed, blah , blah, blah. I didn't want the leveling thinking that is something that will break but I wish I did have the hydraulic front jacks as I already have hydraulic slides.

enah, I hear you a dually tows great but inconvenient to park and I just don't want that big of a rig anyways. The new boxed frame trucks are quite a bit more capable then the old C-frame trucks.
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Last edited by Coolbreeze; 08-10-2017 at 12:48 PM.
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Old 08-10-2017, 06:43 PM   #10 (permalink)
RINGNEKS
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Better late than never, right.

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