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Open Roads Forum  >  Truck Campers

 > Shimming camper to minimize side to side movement

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jimh425

Western MT

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Posted: 07/31/20 07:17am Link  |  Quote  |  Print  |  Notify Moderator

Mine moves sometimes even with a rubber mat on top of bed liner. It’s more likely to move on rougher roads. I don’t personally worry about it too much.

I’ve thought about building some guides which would make it easier to load (centered) while also providing a partial solution to the movement. I like the steel methods guides that people here have made although wood would work as well.


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Grit dog

Black Diamond, WA

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Posted: 07/31/20 08:41am Link  |  Quote  |  Print  |  Notify Moderator

Bert the Welder wrote:

Do you guys using guides have an concern with the camper getting pushed one way or another buy the guides and putting pressure sideways on the legs? Or are you getting it so close that it's just a fraction of an inch?
Thanks!

I don’t see the gain in loading it “exact”. However apparently some do. Mine gets loaded close to the same just because I have a board that doubles as a tailgate when camper is off and it rides between fender well and camper.


"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.

JimK-NY

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Posted: 07/31/20 10:56am Link  |  Quote  |  Print  |  Notify Moderator

jimh425 wrote:

Mine moves sometimes even with a rubber mat on top of bed liner. It’s more likely to move on rougher roads. I don’t personally worry about it too much.

I’ve thought about building some guides which would make it easier to load (centered) while also providing a partial solution to the movement. I like the steel methods guides that people here have made although wood would work as well.


If the camper is moving with a mat, I would look for the issue. Is the rubber mat old and now hard and slick? Is the bed of the truck or bottom of the camper slick? Self stick, non skid tape designed for use on stairs will solve either issue. The camper should not shift and should remain in place due to the stresses of cornering or side winds.

jimh425

Western MT

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Posted: 07/31/20 11:55am Link  |  Quote  |  Print  |  Notify Moderator

JimK-NY wrote:

If the camper is moving with a mat, I would look for the issue.


Are you saying your camper never moves even a little bit? I’m talking about occasional movement, not moving around every curve on a smooth/straight road.

Also, is your TC a tall 4500+ wet one.

billtex

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Posted: 07/31/20 12:38pm Link  |  Quote  |  Print  |  Notify Moderator

Man, you Guys over think everything. Put the camper in the bed, tie it down and go.


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JimK-NY

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Posted: 07/31/20 01:10pm Link  |  Quote  |  Print  |  Notify Moderator

jimh425 wrote:

JimK-NY wrote:

If the camper is moving with a mat, I would look for the issue.


Are you saying your camper never moves even a little bit? I’m talking about occasional movement, not moving around every curve on a smooth/straight road.

Also, is your TC a tall 4500+ wet one.


I have a 9.5' Northstar Igloo. With modifications and loaded for travel, it weighs in over 4000#.

I am saying it does not move, at least not under any reasonable sort of driving conditions. I think it would take a camper busting bump that got the camper airborne.

The bed of the truck is not flat but has slats molded into the bed. In addition the bed is sprayed with a rough surfaced liner. The weight pushes down on the 1/2" thick rubber mat and it conforms to the surface. It is not going to slide or move even in the slightest. The base of the camper has 4 1x6 slats that run the entire length of the camper. Again the weight is going to make the mat conform to those shapes. In addition the bottom of the 1x6 slats also has some sections of anti-slip tread tape. I am sure that was gross overkill.

The camper should not shift or move at all. If that happens you will see it immediately. The fastguns on one side of the camper will be loose and the ones on the other side will be excessively tight. You want even and proper spring tension on all of the fastguns. Once I load the camper and drive for a while, I recheck the fastguns. I usually need to give each of them one turn to compensate for the weight compressing the mat. Again that compression assures there will be no movement.

If you do have shifting, I would find out why. Otherwise you will need to frequently adjust the tension and I suppose the camper could eventually shift substantially out of center.

jimh425

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Posted: 07/31/20 03:08pm Link  |  Quote  |  Print  |  Notify Moderator

JimK-NY wrote:

If you do have shifting, I would find out why. Otherwise you will need to frequently adjust the tension and I suppose the camper could eventually shift substantially out of center.


Again, it’s not really been a problem for me or my particular TC with no damage and has been happening for 14 years. I do adjust/check the Fast Guns, but mine have never gotten that tight. Maybe yours tiedowns are also a lot tighter than mine. Or maybe our roads are that much worse in places or maybe we drive dramatically different speeds. My TC doesn’t always move.

For sure, it sounds like your rubber mat is a lot softer than mine if it noticably depreses. Also there are no slats on the bottom of my TC.

Grit dog

Black Diamond, WA

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Posted: 07/31/20 08:19pm Link  |  Quote  |  Print  |  Notify Moderator

billtex wrote:

Man, you Guys over think everything. Put the camper in the bed, tie it down and go.


Perzactly!

specta

utah

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Posted: 07/31/20 09:03pm Link  |  Quote  |  Print  |  Notify Moderator

How common of a problem is this??

I usually have to adjust mine after the first trip but don't recall having to readjust them again.


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jimh425

Western MT

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Posted: 07/31/20 10:04pm Link  |  Quote  |  Print  |  Notify Moderator

I don’t know if it is common or not. I know that sometimes mine moves. I think it has more to do with road than anything else if it doesn’t move all of the time.

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