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Discussion Starter #1
Alright folks. I have scratched my head long enough on this.

I have a full hard side truck camper. It is about 2200lbs dry. My truck, even with the camper dry, rocks back and forth a ton when hitting dips slightly less than straight as well as when going off road. It is tippy to the point where it may roll over if I am not careful. My friends have f150's, f450's, duramax 2500;s, and have very little body roll even when fully loaded. My friend had the same truck with a big wig sway bar and still had a lot of roll when off road(not much better than mine). I have no sway bar on the rear as it wont fit. Heres what I have

2004 2500 Crew Cab, Cummins, Auto, 4x4.

Sumo springs up front
2007+ front end including new springs
Fairly new bilstien 5100's all around
No lift, no level
Stable loads on lower overloads
Hellwig 3500 helper springs cranked down
Firestone ride rite air bags (axle mounted, not at leaf) Tried airing up in 5psi increments from 5 psi to 100 psi to see if any better. Zero is best for rocking.
Toyo MT Tires rated at 3950lbs and aired to 80 psi
BD Sway bar mounts up front
No rear sway bar
New steering box and 2012 style steering pump
BD steering box brace
BD adjustable track bar
Dynatrack ball joints
New tie rods

Here is what is going through my pea brain. As beefed up as the rear is, I feel like the front end might be the issue. Possibly some severe duty timbrens front and rear? I cant add a rear sway bar until I get a new exhaust. This one is in the way. HD front springs? Dual shock kit front and rear? Heavier sway bar up front?

Any help would be appreciated.
 

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Front torsion sway bar, one of best upgrades put on my truck, stopped 90% of rock and roll, I did Carli on mine, but Thuren also makes good one.
Bilstein shocks are not what they used to be.
A good single King,Fox, or Rancho 9000's Adjustable, buy best shock you can afford.
 

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So not as tall as the camper, but I do have the water sloshing and pulling the truck everywhere and comes to about 2400lbs. Driving from the pump to the private drive is 40-45mph and plenty of turns with dips and a steep hill. Driving down the gravel private drive might as well be off roading and I drive it all over my yard on some steeper hills.

I keep the front tires around 50psi and rears at 60, max is 65psi with these. Only thing I did to stop the sway was timbrens with the 1" timbren spacers installed in the rear. I stopped feeling like the truck would constantly tip after doing that. It's actually extremely controlled. I also found it does a little better with less caster. I added more caster for normal driving, but less caster seemed way more stable with the water in the rear. Something I found by accident. I am leveled though.

906437


Front torsion sway bar, one of best upgrades put on my truck, stopped 90% of rock and roll, I did Carli on mine, but Thuren also makes good one.
Bilstein shocks are not what they used to be.
A good single King,Fox, or Rancho 9000's Adjustable, buy best shock you can afford.
DO NOT DO THIS. Both Carli and Thuren highly recommending NOT buying their bars if you have loads that are taller than the bed rails as your risk for tipping actually greatly increases.
 

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Rear Admiral Rickard Onmi
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Are your air bag air lines tied together or separate? When tied together it allows the air to move from one side to the other and can increase sway. If you can't control the bags independently, then they won't do anything to help sway, and often times make it worse.
 

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DO NOT DO THIS. Both Carli and Thuren highly recommending NOT buying their bars if you have loads that are taller than the bed rails as your risk for tipping actually greatly increases.
Good to know never heard of that before,never have had high center of gravity load ie camper in truck .
 

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Rear Admiral Rickard Onmi
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Carli and Thuren suspension systems aren't really designed for people that actually use their trucks IMHO. They are more tuned towards the off road and enthusiast crowds, compared to people that work their vehicles While i am not talking down about any of their systems, it's just that their intended use is unloaded, not loaded
 

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yeah I asked both Carli and Thuren about them since I haul that water but not all the time.

This is right out of Thurens page.

"Not recommended if you have a much higher center of gravity. For example a slide in camper. Heavy weight in the bed below the rail, or on the trailer hitch, is no issue."
 
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Discussion Starter #8
My bags are separate. I have heard good things on the Timbrens, but it doesnt sound like it's life changing.
 

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A rear sway bar is the best bang for you buck (what is the issue with the exhaust?). I had good luck with adjustable Rancho 9000 shocks, Hellwig rear sway bar and Firestone air bags on an f250 with a heavier Lance camper.
 
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Front torsion sway bar, one of best upgrades put on my truck, stopped 90% of rock and roll, I did Carli on mine, but Thuren also makes good one.
Bilstein shocks are not what they used to be.
A good single King,Fox, or Rancho 9000's Adjustable, buy best shock you can afford.
That's a softer rate which is fine for an unladen or maybe an FWC. With a heavy wet cabover I was steered away from one by Thuren for highway stability. The coils on my '07 2500 were overwhelmed by my 2000# wet Northstar popup. The stock shocks were a total joke. I went with Kore VR's which are the highest rate aftermarket coils I was told. I had Rancho 9000's on my 98.5,same camper and they do a good job of highway sway minimization and can be softened up for off highway.
 
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Discussion Starter #11
Yeah. Most people have no issue with ford's and gm. It's a dodge thing. It's a 5" exhaust that was installed by po. It's in the way. It's fairly new so I don't feel like ripping it out.
 

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Discussion Starter #12
I have heard of a lot of people having issues with the rancho shocks including a couple friends. I wish there was an affordable way to get custom valves shocks.
 

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Yeah. Most people have no issue with ford's and gm. It's a dodge thing. It's a 5" exhaust that was installed by po. It's in the way. It's fairly new so I don't feel like ripping it out.
Dodge has the stiffest hydroformed frame of that year too.There are HD front coils out there with no lift. I'm sure they would help heaps. Another option would be Mopar snow plow package springs. 2002-2011 Dodge Ram 2500, 3500 w/ Solid Front Axle 2wd 4wd - CARGOMAXX XHD Coil Springs (Pair) - Front [350-1230XHD] | $234.95 | SD Truck Springs | Leaf Springs, Helper Springs and Suspension Parts
 
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Discussion Starter #14
Dodge has the stiffest hydroformed frame of that year too.There are HD front coils out there with no lift. I'm sure they would help heaps. Another option would be Mopar snow plow package springs. 2002-2011 Dodge Ram 2500, 3500 w/ Solid Front Axle 2wd 4wd - CARGOMAXX XHD Coil Springs (Pair) - Front [350-1230XHD] | $234.95 | SD Truck Springs | Leaf Springs, Helper Springs and Suspension Parts
Dodge has the stiffest hydroformed frame of that year too.There are HD front coils out there with no lift. I'm sure they would help heaps. Another option would be Mopar snow plow package springs. 2002-2011 Dodge Ram 2500, 3500 w/ Solid Front Axle 2wd 4wd - CARGOMAXX XHD Coil Springs (Pair) - Front [350-1230XHD] | $234.95 | SD Truck Springs | Leaf Springs, Helper Springs and Suspension Parts
Awesome. I couldn't find any non lifted ones for the life of me. These did not come up in my search on SD before. Thanks for the link.
 

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Discussion Starter #15
Ok, so, Timbren in the front vs XHD Coil Springs. Which would do better for sway? I already have sumo springs, so I'm leaning toward XHD coils.
 

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You can do an axle dump with your exhaust....



906478
 

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Not sure how much if at all this would help but when I did the sumo's in the rear, there was a huge gap to the axle before they did anything. Not liking that I went to tap plastics and bought a block of delrin, cut it as needed to act as a spacer berween the mounting flange of the sumo and the mount. Needed longer bolts for it to install. When I have hauled a heavy load in the bed, the back end remained planted with minimal sway. Granted it was not off road but it was a heavy load back there. The last one was approx 1500~1800# of rock.

 

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Not sure how much if at all this would help but when I did the sumo's in the rear, there was a huge gap to the axle before they did anything. Not liking that I went to tap plastics and bought a block of delrin, cut it as needed to act as a spacer berween the mounting flange of the sumo and the mount. Needed longer bolts for it to install. When I have hauled a heavy load in the bed, the back end remained planted with minimal sway. Granted it was not off road but it was a heavy load back there. The last one was approx 1500~1800# of rock.

Nice. Oddly, I just went out this morning and mounted some hockey pucks to the lower spot where the sumo springs make contact. There was no gap when the camper is loaded, but it's worth a shot to see if it stiffens it up some.

My rear airbags are cracking, so I'm sure I'll be buying some timbrens for that soon anyway.
 
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