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Old 08-21-2014, 03:37 PM   #21
JRTJH
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Quote:
Originally Posted by Adventurider View Post
I keep seeing these threads. while I agree on paper, things may not add up, or "meet requirements" etc.

But do this as an example. Dodge 2500 SRW compared to Dodge 3500 SRW, both with same engines, trans, diff ratio, bed length etc.

2500 = 12,950
3500 = 16,900

Guess what the difference is between the trucks?

The rear spring, that's it, between the two trucks, the part number on the springs are different, everything else is the same.

In theory, they could probably call the 2500 with heavier rear spring by the old name everyone called them. "Camper Special" or "Heavy Half" or in this case, "Heavy 3/4"


Crazy eh?
If those numbers are GVW, the max GVW for a 2014 Ram 2500 is 10,000 and the max for a SRW 3500 is 11,500.

If you're addressing the GCWR, air bags won't affect the GCWR (except for making the truck level).

What are the figures you're posting?
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Old 08-21-2014, 03:40 PM   #22
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Quote:
Originally Posted by Adventurider View Post
I keep seeing these threads. while I agree on paper, things may not add up, or "meet requirements" etc.

But do this as an example. Dodge 2500 SRW compared to Dodge 3500 SRW, both with same engines, trans, diff ratio, bed length etc.

2500 = 12,950
3500 = 16,900

Guess what the difference is between the trucks?

The rear spring, that's it, between the two trucks, the part number on the springs are different, everything else is the same.

In theory, they could probably call the 2500 with heavier rear spring by the old name everyone called them. "Camper Special" or "Heavy Half" or in this case, "Heavy 3/4"


Crazy eh?
All of that is true just as it is for my F250, however the DOT will see it differently. So it boils down to legality and one's ideals...
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Old 08-21-2014, 05:17 PM   #23
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It's all about how the manufactures apply a formula to the number on the door jamb, and how it impacts the $$ figure on the sticker price.

Look at the price of a 2500 and a 3500 dodge with identical options and explain how they can be so much difference for 1 additional leaf in the rear stack.

Run what you feel safe with, deal with any consequences that may or may not occur.

Just get out and experience life without over thinking your existence. Me? I'm ok with my "ideals" as they sit.

BTW, I have NEVER seen or heard first hand any DOT repercussions about this subject. All I hear is theory and "What if's"
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Old 08-22-2014, 01:28 AM   #24
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Quote:
Originally Posted by Adventurider View Post
It's all about how the manufactures apply a formula to the number on the door jamb, and how it impacts the $$ figure on the sticker price.

Look at the price of a 2500 and a 3500 dodge with identical options and explain how they can be so much difference for 1 additional leaf in the rear stack.

Run what you feel safe with, deal with any consequences that may or may not occur.

Just get out and experience life without over thinking your existence. Me? I'm ok with my "ideals" as they sit.

BTW, I have NEVER seen or heard first hand any DOT repercussions about this subject. All I hear is theory and "What if's"
In my past life I worked for an Ag products company and we allowed the DOT/DPS to use the scales and yard in all five of our terminals for weight and measures issues..

So... I have personal experience with the issue and have witnessed many pickups being weighed and ticketed for overweight while towing TT and 5'ers along with cattle and horse trailers.

Will you get stopped and weighed... probably not

Its kind of like speeding, but them cops ain't stupid you be towing a 12K or 14K 36-40 foot 5th wheel behind an f-250 or 2500 and you is subject to getting stopped and weighed... it all depends on how the cops day is going..
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Old 08-22-2014, 06:35 AM   #25
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Quote:
Originally Posted by Adventurider View Post
It's all about how the manufactures apply a formula to the number on the door jamb, and how it impacts the $$ figure on the sticker price.

Look at the price of a 2500 and a 3500 dodge with identical options and explain how they can be so much difference for 1 additional leaf in the rear stack.

Run what you feel safe with, deal with any consequences that may or may not occur.

Just get out and experience life without over thinking your existence. Me? I'm ok with my "ideals" as they sit.

BTW, I have NEVER seen or heard first hand any DOT repercussions about this subject. All I hear is theory and "What if's"
Again: If you think that the GVW of a Dodge 2500 is 12,950 and the GVW of a Dodge SRW 3500 is 16,900, you're missing the mark by at least 3000 pounds. Check your data, the MAXIMUM GVW for a current model Dodge 2500 is 10,000 and the MAXIMUM GVW for a current model Dodge 3500 SRW is 11,500. Your figures are not valid.
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Old 08-22-2014, 07:09 AM   #26
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Here you go, and to my point, the only difference between these two trucks is a single leaf in the rear stack. In theory, if a given manufacturer was to replace that rear leaf with an air bag and have it certified, would it look like the below numbers? Just throwing some theory and "What if" conversation in here for discussion.

2009 DODGE RAM_3500 3500 SLT, QUAD CAB, 4WD, 6.25 FT Bed, 6-Spd Automatic 68RFE Transmission, 6.7L I6 Cummins Turbo Diesel Engine:
With 4.10 Axle Ratio Axle Ratio [i] You Can Tow 16900 lbs
Gross Vehicle Weight Rating (GVWR) [i] = 10100 lbs
Payload [i] = 3128 lbs
Curb Weight [i] = 6972 lbs
Curb Weight Front/Rear = 4283 lbs/4283 lbs
GAWR Front/Rear [i] = 5200 lbs/6200 lbs
Gross Combination Weight Rating (GCWR) [i] = 24000 lbs

2009 DODGE RAM_2500 2500 SLT, QUAD CAB, 4WD, 6.25 Ft Bed, 6-Spd Automatic 68RFE Transmission, 6.7L I6 Cummins Turbo Diesel Engine:
With 4.10 Axle Ratio Axle Ratio [i] You Can Tow 12950 lbs
Gross Vehicle Weight Rating (GVWR) [i] = 9000 lbs
Payload [i] = 2083 lbs
Curb Weight [i] = 6917 lbs
Curb Weight Front/Rear = 4292 lbs/4292 lbs
GAWR Front/Rear [i] = 5200 lbs/6010 lbs
Gross Combination Weight Rating (GCWR) [i] = 20000 lbs
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Old 08-22-2014, 07:25 AM   #27
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Back to the topic:

Adding a set of airbags is an excellent idea IMO. I had a set of airlift 5000's on my '86 F250 SRW when I towed my '97 Jayco 323RKS.

Put another set on my current rig ('94 F350 DRW) including on board air. Jayco had a 1900 king pin and current is about 1200 lbs. I like the fact that you can adjust the ride based on road conditions, and deflate (5 psi) when your doing the sight seeing.
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Old 08-22-2014, 07:32 AM   #28
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Sorry for getting off track.

Agreed, back on point. I have airbags and it's nice to be able to keep things level, or to adjust load on the fly. I used to just have a fitting in the rear, but that got to be a real pain. Getting onto different road surfaces sometimes you want to adjust the ride.

I've been thinking about changing it to a side to side set up instead of having both sides connected. Not sure if that would improve things on curves etc.
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Old 08-22-2014, 07:44 AM   #29
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On mine one button inflates both, and I have separate buttons to deflate, along with 2 separate gauges.
http://i420.photobucket.com/albums/p.../Airgauges.jpg
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Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.

Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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Old 08-22-2014, 07:57 AM   #30
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Nice, that looks a lot less complicated than the firestone setup. Is there a part number for that gauge/switch assembly alone?
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Old 08-22-2014, 08:08 AM   #31
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I have the "single path" I believe. Dont know if the dual path was available when I bought in 2008

http://www.airliftcompany.com/produc...ntroller-i-ii/
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Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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