Good Sam Club Open Roads Forum: Truck Campers: Need Suspension Mods
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cheftim

Bourne, MA

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Posted: 09/16/20 01:37pm Link  |  Quote  |  Print  |  Notify Moderator

Buzzcut1,
Hit the local dump scale today. Mind you, they use the scale to charge contractors for dumping.

Front: 4440
Rear: 7540
Total: 12000

Curb weight of the exact truck on nada guides says curb weight is 6600. Not sure how accurate that is but even if it was 7k, that'd mean the camper was nearly 5k.

I'm 275lbs and there's a 1/4 tank gas in the truck. Got about 10 gallons water in the camper tank and about 20 in black, grey negligible. Wife just cleaned out the fridge and cabinets so no serious additional weight in the camper other than some dishes and clothes and a Q grill.

Scale set up isn't optimal for weighing axles one at a time. There's a downramp 2 feet from the end of scale so I had the front wheels off the scale by only a foot so the front axle wouldn't be down the ramp. Thinking that inflated the rear axle weight.

* This post was edited 09/16/20 01:51pm by cheftim *


2017 F-350 LWB
2018 Arctic Fox 990
2017 Sailfish 290 w/Twin 300 Verados


Geo*Boy

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Posted: 09/16/20 03:13pm Link  |  Quote  |  Print  |  Notify Moderator

Tim, the AF 990’s with 2 batteries and propane will hit 4,500 lbs. without clothes and food. Mine hits 4,800+ lbs with some water.

Buzzcut1

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Posted: 09/16/20 05:35pm Link  |  Quote  |  Print  |  Notify Moderator

Ok 7500 at the rear axle is what my 03 F350 Long bed CC 4x4 diesel SRW with a lance 1055 scaled at. I had tires rated at 3750 (Toyo 285/75R16) and had a major tread separation blowout on the freeway at 65 left rear tire let loose, almost rolled. It did $3000 in damage to the truck bed. After that I switched to 19.5 wheels and tires rated at 4500 pounds each or 9000 pound capacity at each axle. Bonus is no more sidewall flex induced roll. Check your tire ratings I bet you are in for a shock


2011 F350 6.7L Diesel 4x4 CrewCab longbed Dually, 08 Lance 1055, Torqlift Talons, Fast Guns, upper and lower Stable Loads, Super Hitch, 48" Super Truss, Airlift loadlifter 5000 extreme airbags


billtex

RI

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Posted: 09/16/20 06:25pm Link  |  Quote  |  Print  |  Notify Moderator

cheftim wrote:

ranhalgo, thanks for the comparison. I had air bags on my last setup and never loved them. I'm trying like you to do things one at a time. At this point I'm trying to decide between the lower Stableloads, Helliwig Big Wig rear stabilizer, and Supersprings.

billtex, other than yours being a CC and mine a SuperCab, we're pretty close in set up and weight. Other than the lower Stableloads, what other mods have you added?


Lower sl and 2” energy suspension bumpers for top overloads.
Our rigs are very similar weight.

I did not want to do anything that would effect unladen ride. I am very happy with these mods.

Last truck I did too much: air bags, super springs, sway bar.
I will not be doing any of those this time.
Truck rode like a cement truck. All the time.


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towpro

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Posted: 09/16/20 06:27pm Link  |  Quote  |  Print  |  Notify Moderator

Yes, I recall our 2016 990 was no where near what your saying. Truckcamper mag shows wet weight 4,781 pounds. my Ram 3500 2wd dually was just a couple lbs under 14,000 GVW with camper on headed to beach for a week, including a couple hundred lbs of tung weight, empty waist tanks and maybe 10-20 gallons of water between cold and hot.


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Grit dog

Black Diamond, WA

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Posted: 09/16/20 07:40pm Link  |  Quote  |  Print  |  Notify Moderator

I’ll trade you my 860 for your 992. That should help with weight and center of load!
Seriously though, your truck is big enough, unless you expect it to drive like it does empty.
You have a 2 ton white whale on the back. And sounds like either your expectations aren’t in line with how it’s going to handle or you don’t understand why it’s acting the way it does.
It’s fine. Go camping. Yes overload springs will slap if their not engaged. EngAge them.
And if you can reasonably drove it around with very little help from air bags then you again don’t know how it should ride or it’s hauling the weight about as well as it should.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

Grit dog

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Posted: 09/16/20 07:43pm Link  |  Quote  |  Print  |  Notify Moderator

That weight looks about right. Nothing magical. Actually encouraging as it’s not maxing anything out.

Oregun

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Posted: 09/16/20 08:30pm Link  |  Quote  |  Print  |  Notify Moderator

I agree with Buzzcut check your tire rating. My F350 fully loaded is similar with 4000lbs on the front axle and 7600lbs on the rear axle carrying Adventurer 910FBS camper with 19.5 Tires.

cheftim

Bourne, MA

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Posted: 09/17/20 05:56am Link  |  Quote  |  Print  |  Notify Moderator

Buzzcut1,

Yeah, tires are rated at 3415 each so that will need to be upgraded. Thanks for that feedback.

Anyone have E or F tire suggestions that are decent on the highway and are around 4k load range?

I'm leaning towards Supersprings as well.

JIMNLIN

Oklahoma

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Posted: 09/17/20 07:07am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

Buzzcut1,
Hit the local dump scale today. Mind you, they use the scale to charge contractors for dumping.

Front: 4440
Rear: 7540
Total: 12000

Curb weight of the exact truck on nada guides says curb weight is 6600. Not sure how accurate that is but even if it was 7k, that'd mean the camper was nearly 5k.

We know your F350 SRW weighs much more than 6600 lbs. However thats not the important number for carrying a heavy TC unless your state requires some kind of weight for registration purposes.

The '17 F350 has a 7320 RAWR. RAWR = the lessor of a tire/wheel and rear spring pack. 18"-20" tires can be upgraded for more load capacity however OEM Ford wheel have a 3590 lb load rating according to Fleet Ford specs so your truck will need higher rated wheels.

And of course the rear spring pack will need help also. Lots of different options out here in that area....some good some not so good for carrying a top heavy TC.

That 4331 payload sticker is a gvwr based sticker (front and rear axle) and cannot all go in the bed of the truck over the rear axle. CAT scale axle weights show many one ton SRW trucks empty rear axles can weigh in the 3300-3400 lbs range. Simple math say 3400 lbs less the trucks 7230 rawr = around 3800 lbs max weight.

I 'spect that 7540 rear axle weight is darn close....yer overloaded on tires and wheels.
I see higher rated tire/wheel combo and a better overload system for the back of that SRW truck.


"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides

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