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Mounting Truck Camper on Top Of 5th Wheel Hitch Rails

vwsportbug
Explorer
Explorer
I just bought a Truck Camper to use but don't want to remove my 5th Wheel Hitch rails from the truck bed. I would still like to use a 3/4" rubber bed mat under the camper but how do I get the clearance to get above the rails? I'm thinking of using 2 X 6 boards across the bed in front of, between, & behind the 5er rails to lift above the rails. Should I use a rubber bed mat below the 2 X 6 boards or on top of them? I'm sure I'll have to trim the rubber mat to fit around the 5er rails.

What have others done? Thanks in advance!
VeeDub
2006 Carriage Cameo LXI F35FD3
2006 Ford F350 Dually
10 REPLIES 10

vwsportbug
Explorer
Explorer
Iโ€™ll Probably use 2x10s across the bed to clear the 5er rails. Should my rubber mat be on top of the boards or under them? Donโ€™t want them sliding.
VeeDub
2006 Carriage Cameo LXI F35FD3
2006 Ford F350 Dually

MN_Ben
Explorer
Explorer
BFL13 wrote:
MN Ben wrote:
I have the 5er rails in my F350. We transferred a Lance 1130 from Michigan to Minnesota on top of a frame of treated 2x4s flat and toenailed with screw. The camper ended up slipping back about 8" from the bumping down the freeway. The tiedowns were vertical so they did allow the camper to slide and the wood was slightly damp from a rain. I stopped a couple of times to readjust and retighten the tiedowns.
I purchased a rubber livestock mat and will be using it next weekend but I also plan to remove the 5er rails and reinstall them when we use the 5er again. There is only 5 bolts for each rail so it wont be to bad for meI did not like the camper sliding.


Do you mean the boards slipped on the metal truck bed? I can see that happening. Especially with the corrugated bed, less surface area.

On mine with the mat, the boards don't slip with the camper on. Maybe try it with the mat before going to the trouble of removing the 5er rails. Re-installing the rails each time could be a hassle if they need to be aligned just right to get the hitch on, and there is wiggle room in the rail bolt holes.


Yeah, the treated 2x4 boards slid on the metal bed. They stayed in place against the bottom of the camper. The boards were only fastened to each other in a picture frame design.

I would rather have the camper as low as possible, but two ideas I like are the 5/4 decking (with maybe a rubber mat under or on top) or the high density styrofoam as I have 4 sheets laying around.

Lots of ideas for the OP. What do you think vwsportbug?
2006 F350 Dually PSD
2008 Keystone Laredo 29RL 5th Wheel

2002 F250 7.3 PSD -SOLD
2004 Lance 1130 -SOLD
2005 Lance 981 -SOLD
2000 Lance 1010-SOLD
199? Texan 650 -SOLD
Ford FX4 Ranger -SOLD

BFL13
Explorer II
Explorer II
MN Ben wrote:
I have the 5er rails in my F350. We transferred a Lance 1130 from Michigan to Minnesota on top of a frame of treated 2x4s flat and toenailed with screw. The camper ended up slipping back about 8" from the bumping down the freeway. The tiedowns were vertical so they did allow the camper to slide and the wood was slightly damp from a rain. I stopped a couple of times to readjust and retighten the tiedowns.
I purchased a rubber livestock mat and will be using it next weekend but I also plan to remove the 5er rails and reinstall them when we use the 5er again. There is only 5 bolts for each rail so it wont be to bad for meI did not like the camper sliding.


Do you mean the boards slipped on the metal truck bed? I can see that happening. Especially with the corrugated bed, less surface area.

On mine with the mat, the boards don't slip with the camper on. Maybe try it with the mat before going to the trouble of removing the 5er rails. Re-installing the rails each time could be a hassle if they need to be aligned just right to get the hitch on, and there is wiggle room in the rail bolt holes.
1. 1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
Photo in Profile
2. 1991 Bighorn 9.5ft Truck Camper on 2003 Chev 2500HD 6.0 Gas
See Profile for Electronic set-ups for 1. and 2.

ryoung
Explorer
Explorer
I used the high density foam board that is used under concrete for insulation. Get a 4ft x 8ft sheet that is 2 inches thick, cut out for the rails, and lay it in the bed. Used the same sheet for many years.

ryoung
2018 Ram 3500 SRW Diesel
2019 Wolf Creek 840

MN_Ben
Explorer
Explorer
I have the 5er rails in my F350. We transferred a Lance 1130 from Michigan to Minnesota on top of a frame of treated 2x4s flat and toenailed with screw. The camper ended up slipping back about 8" from the bumping down the freeway. The tiedowns were vertical so they did allow the camper to slide and the wood was slightly damp from a rain. I stopped a couple of times to readjust and retighten the tiedowns.
I purchased a rubber livestock mat and will be using it next weekend but I also plan to remove the 5er rails and reinstall them when we use the 5er again. There is only 5 bolts for each rail so it wont be to bad for meI did not like the camper sliding.
2006 F350 Dually PSD
2008 Keystone Laredo 29RL 5th Wheel

2002 F250 7.3 PSD -SOLD
2004 Lance 1130 -SOLD
2005 Lance 981 -SOLD
2000 Lance 1010-SOLD
199? Texan 650 -SOLD
Ford FX4 Ranger -SOLD

BFL13
Explorer II
Explorer II
Started with a camper and the full bed mat. Got a 5er, they cut the bed mat in half across between the wheel wells, and cut slots in each half for the rails. Still have a bit of rail height above mat.

Whenever have to carry 4 x 8 sheets in the truck, use three 8 ft 2x4s to clear the hitch rails

Then got another camper years later. Used the 2 x 4 boards under the camper same as when carrying 4x8 sheets. The camper hold downs keep it all in place. The back of the camper hangs down below the bed so no problem with boards coming out the back with no tail gate there.
1. 1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
Photo in Profile
2. 1991 Bighorn 9.5ft Truck Camper on 2003 Chev 2500HD 6.0 Gas
See Profile for Electronic set-ups for 1. and 2.

TxGearhead
Explorer
Explorer
Use enough wood to get good support. Plywood on top of that. Then the rubber mat on top.
Or....throw the rails away and install a gooseneck ball and get a Reese GooseBox pinbox.
2018 Ram 3500 CC LB DRW 4X4 Cummins Aisin Laramie Pearl White
2018 Landmark Oshkosh
2008 Bigfoot 25C9.4
2014 NauticStar 21 ShallowBay 150HP Yamaha
2016 GoDevil 18X44 35HP Surface Drive

Slymer
Explorer
Explorer
I used numbered 2 x 4's to get above the rails. I then attached the last 4 together so I didn't lose one 2 x 4 going down the road. After I got the wood in I used a 3/8" horse stall mat so I didn't get too tall.

NRALIFR
Explorer
Explorer
The first dually pickup I owned came with fifth wheel hitch rails in the bed from the previous owner. It also came with a rubber mat in the bed with cutouts for the rails to poke through. I found that 5/4โ€ treated deck boards were just the right height to allow the camper to clear the rails.

I attached them to the bottom of the camper, and also had the smart idea to place two of them so they landed directly in front of the hitch rails. They acted as guides for the camper when lowering it into the bed, and prevented it from moving backwards while traveling.

The first one is new because I had just replaced it. The first one developed a long split.



:):)
2001 Lance 1121 on a 2016 F450 โ€˜Scuse me while I whinge.
And for all you Scooby-Doo and Yosemite Sam typesโ€ฆโ€ฆโ€ฆ..Letโ€™s Go Brandon!!!

Lwiddis
Explorer
Explorer
How much higher will camper ride than if directly on the truck bed?
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad