Good Sam Club Open Roads Forum: Truck Campers: Truck bed camper shim
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 > Truck bed camper shim

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Supercharged111

Colorado Springs, CO

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Posted: 05/20/21 12:00pm Link  |  Quote  |  Print  |  Notify Moderator

My Lance has always say ass down in the bed. I'm wondering what you guys have done for shims? I had an old piece of plywood lying around and cut about a 42x48" piece and put it in the back half of my bed. I used my planer to taper the leading edge. I'm wondering if I should have cut it shorter? The camper is about dead nuts level now.


2007 Lance 1131
1997 GMC K3500 crew cab supercharged dually

jimh425

Western MT

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Posted: 05/20/21 12:25pm Link  |  Quote  |  Print  |  Notify Moderator

I just use air bags to level the camper/truck.


'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 Dbl Slide, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Air Bags, Hankook DH-01 225/19.5 Fs, Curt front hitch, Energy Suspension bump stops.


monkey44

Cape Cod, MA and Central Fla

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Posted: 05/20/21 12:35pm Link  |  Quote  |  Print  |  Notify Moderator

Photo before and after might help.

Is the truck level and the camper not???

My HD sits low in front when unloaded, and level when camper loaded.


Monkey44
Cape Cod Ma & Central Fla
Chevy 2500HD 4x4 DC-SB
2008 Lance 845
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Supercharged111

Colorado Springs, CO

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Posted: 05/20/21 01:28pm Link  |  Quote  |  Print  |  Notify Moderator

Truck is level, camper is not. I'll have to look up posting pics, but the 42" piece has made an improvement. I just wonder if it's too long and the camper may teeter on it?

mellow

Salisbury, MD

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Posted: 05/20/21 01:54pm Link  |  Quote  |  Print  |  Notify Moderator

1131 is a long camper like my 1191 and hangs off the back quite a bit. Is it possible that you have rot in it making the back sag that hangs off?


2002 F-350 7.3 Lariat 4x4 DRW ZF6
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Supercharged111

Colorado Springs, CO

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Posted: 05/20/21 02:01pm Link  |  Quote  |  Print  |  Notify Moderator

Rot on the camper or truck? Truck has none, camper is unlikely to have rot being from CO but anything's possible.

Slymer

Ontario, Canada

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Posted: 05/20/21 02:58pm Link  |  Quote  |  Print  |  Notify Moderator

Ours always looked tilted too & it made no sense. Finally figured out something. Take a 5 ft board & put it across both bedrails, just behind the back window. Now take a measurement from the bottom of that board to the truck bed. Now take that board and move it back just forward of the tailgate & take that measurement again. On our 2011 F350 there was almost an inch difference if I remember rightly. Basically a manufactured optical illusion. No idea why, so I just got used to it.

cooldavidt

Vancouver

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Posted: 05/20/21 03:19pm Link  |  Quote  |  Print  |  Notify Moderator

It is not a good practise to support only part of the TC bottom on the truck box floor.
When you do part of the floor is unsupported and could sag and could develop weakness and cracks.
I use a slab of closed cell construction foam. 100% coverage. 4x8 in my case. Easy to cut if need be.
Cheap and waterproof.

352

Oxfofd, Fl

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Posted: 05/20/21 05:38pm Link  |  Quote  |  Print  |  Notify Moderator

Have the old lady move to one side or the other to level it out.


The manatees of Halls river Homosassa Springs Fl

1985 Chevy Silverado c10. 454 stroker / 495 CI = 675 HP. 650lb of torque. Turb0 400 tranny. 3000 stall converter. Aluminum heads. 3 inch exhaust flowmasters. 2 inch headers. Heat and air. Tubed.


MORSNOW

Mountain Home, ID

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Posted: 05/21/21 07:26am Link  |  Quote  |  Print  |  Notify Moderator

GM truck boxes are not flat, they have a peak across the bed by the wheel wells to allow water to drain from the front and rear of the box. Campers will rock on this peak unless a shim is placed in the rear. I used two semi truck mud flaps under my rubber mat to make a level surface. Use a straight edge, like a 4' level and slide it on the floor of the box from front/rear and you will see the peak.


2014 Wolf Creek 850SB
2012 GMC Sierra SLT 2500HD

7,220# Truck/10,400# Camper Fully Loaded


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