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02-26-2018, 10:31 AM
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#1
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Junior Member
Grand Design Owners Club
Join Date: Feb 2017
Location: Sicklerville, NJ
Posts: 28
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New to 5th wheel trailer
Pulling 18,000lbs 5th wheel 40ft. What type of truck do I need?
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02-26-2018, 10:33 AM
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#2
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Senior Member
Fleetwood Owners Club Outdoors RV Owners Club
Join Date: Nov 2013
Location: Houston, Texas
Posts: 4,580
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at least a 1 ton dually. You could go 450 and be happy.
you could go medium duty cab and be VERY happy.
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RVM#78 - -USAF- F-15 Eagle Radar Vet
'5 Fleetwood Revolution- '15 Airstream Intl Sig. 27FB
Jay, Andrea, Stella '14 Ram 3500 Aisin '18 ORV F30RLS
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02-26-2018, 10:43 AM
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#3
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Junior Member
Grand Design Owners Club
Join Date: Feb 2017
Location: Sicklerville, NJ
Posts: 28
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I was told a 350 with 3:55 will pull it
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02-26-2018, 11:01 AM
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#4
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Senior Member
Join Date: Aug 2017
Posts: 1,020
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New to 5th wheel trailer
18000 is kind of that area where a DRW starts to be a real necessity. You're looking at 3600 pounds of pin weight plus a couple of hundred for the hitch. That's pushing it for a SRW diesel (which you'll likely want to get the GCWR up high enough.)
The 2017 Lariat 350 I looked at had a payload of 3152...6.7, crew cab, long bed, FW prep, moon roof (about the heaviest 350 SRW out there but still). The dealer told me the payload of that truck was 7000 pounds. Yikes. I didn't buy a truck from that guy.
Don't fear the dually!
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2018 ORV Timber Ridge 24rks
2017 F350 6.7 CC DRW
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02-26-2018, 11:08 AM
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#5
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Senior Member
Fleetwood Owners Club Outdoors RV Owners Club
Join Date: Nov 2013
Location: Houston, Texas
Posts: 4,580
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Quote:
Originally Posted by BSP012
I was told a 350 with 3:55 will pull it
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It will pull it.. it just won't support it too well. The extra two sets of tires (and brakes) add vertical support and braking power.
It's all about the payload and braking. Be sure to check the sticker in the door jamb of any truck you consider. Options, like 4 wheel drive, sunroofs, stuff like that, eat into the available payload.
Maxing your payload doesn't break the truck, but it does make the ride worse and more dangerous as you've limited the trucks rear end capacity for helping control the trailers roll, pitch and yaw. Although 5ths don't typically sway, but when they lean, they can still pull the rear end around and too much vertical weight can help unload the front tires..
Take the payload number less the pin weight, less everything else you'll put in the truck, including people and hitch.
__________________
RVM#78 - -USAF- F-15 Eagle Radar Vet
'5 Fleetwood Revolution- '15 Airstream Intl Sig. 27FB
Jay, Andrea, Stella '14 Ram 3500 Aisin '18 ORV F30RLS
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02-26-2018, 11:11 AM
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#6
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Senior Member
Fleetwood Owners Club Outdoors RV Owners Club
Join Date: Nov 2013
Location: Houston, Texas
Posts: 4,580
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__________________
RVM#78 - -USAF- F-15 Eagle Radar Vet
'5 Fleetwood Revolution- '15 Airstream Intl Sig. 27FB
Jay, Andrea, Stella '14 Ram 3500 Aisin '18 ORV F30RLS
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02-26-2018, 01:31 PM
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#7
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Senior Member
Outdoors RV Owners Club
Join Date: Oct 2014
Posts: 3,539
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I would want a 450 for that load.
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2020 F28 RKS Titanium
2017 Creekside 23 RBS Sold
2016 F250 Super Crew XLT Overworked
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02-26-2018, 02:10 PM
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#8
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Senior Member
Join Date: Sep 2016
Location: SLC, UT
Posts: 1,172
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Quote:
Originally Posted by BSP012
I was told a 350 with 3:55 will pull it
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Yes a DRW w/3.55.
__________________
2017 F-350 6.7 Diesel, CCSB SRW - 2005 F350 6.0
2018 Alpine 3660FL - 2005 Alfa SYF30RLIK
--Full time 2016 to 2019-- Seasonal now
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02-26-2018, 02:14 PM
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#9
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Registered User
Join Date: Sep 2014
Location: Tucson
Posts: 1,419
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You'll need a diesel and at least 3.73 gears to climb hills. I pull a 19,000 toy hauler with my dually Duramax with ease.
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02-26-2018, 04:59 PM
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#10
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Junior Member
Join Date: Feb 2018
Posts: 9
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Quote:
Originally Posted by BSP012
Pulling 18,000lbs 5th wheel 40ft. What type of truck do I need?
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As others mentioned you will run out of payload before you exceed the tow ratings. A rule of thumb is 20% of the rig GVWR which in this case is 3600 lbs. of hitch weight. This doesn't include passengers, extra stuff, luggage etc. Whatever you do don't skimp on the tow vehicle. Most find out the hard way that 1/2 won't work, 3/4 may work but marginal on only certain 5th wheels, 1 ton is the best option and for a rig this big a dually TV is highly recommended and the 450 is definitely on the list.
Best advise is choose wisely and don't be afraid of the larger tow vehicles. You won't be sorry and it will end up being much cheaper than going through the other lower weight capable trucks.
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2016 Silverado 3500 HD
2018 Cedar Creek Silverback 29IK
Andersen Ultimate 2, TST507 w/repeater
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02-26-2018, 07:22 PM
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#11
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Junior Member
Join Date: Feb 2018
Posts: 3
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You don't need a 450, the payload capability is actually less than a 350 due to the heavier axle, brakes and 19.5 wheels and tries. My 17' DRW F350 CC Lariat has payload rating is 5279.
https://youtu.be/I6RIJrwu9AM
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2017 FORD F-350SD CC DRW 4x4 4.10 (Black Pearl) | B&W Companion Hitch | Viair 10007 150 psi OBA | Airlift Load Lifter 5000 Ultimate Plus Air Bags | Airlift Wireless Air 72000
2018 Montana HC 330RL | Trailair Rota Flex pin box | JT Strong Arms | MORryde Step Above
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02-26-2018, 08:18 PM
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#12
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Junior Member
Grand Design Owners Club
Join Date: Feb 2017
Location: Sicklerville, NJ
Posts: 28
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Thanks,what’s the big difference between the 350 & 450?
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02-26-2018, 08:43 PM
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#13
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Senior Member
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,323
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Surely FOMOCO enthusiasts will go on, but basically the 450 has a wide stance front axle allowing the steering wheels to turn slightly more before frame interference. This allows for a slightly improved truck turning radius.
The newest models may have other benefits.
As others note, "pulling" is only a portion of the formula. Payload, stability, etc. at 18K lbs. you'll not likely complain about having too much truck.
Be well
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EZGo-TXT, Clubcar Precedent
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02-26-2018, 08:59 PM
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#14
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Senior Member
Join Date: Sep 2013
Posts: 1,500
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Get a dually! All three make good trucks. Don't get stuck on Brand . Just get what suits you best .
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