Re securing the cab/cabover joint/seam

Desert Captain wrote:

coolmom42 wrote:
As a potential class C owner, I am interested in this repair as it seems to be a common problem. I see the washers and lock nuts sticking up on the upper side of the cabover. It looks like a very effective repair, but don't they damage the cushion that fits in the cabover?

*just a little confused*

Look closely at the last picture. The plastic molding slides over the top of the nuts and the cabover mattress lays on top of the plastic molding. Most Class C manufacturers use basically the same construction technique as Nexus, nothing unusual there. Here is another pic that may help....



As you can see the left piece of molding is in place with the decorative buttons covering the screws that secure it to the seam. The center piece of molding is overlapped by the left hand piece and has not been drilled (note the dimple on the left side), but both pieces are covering the nuts on top where the 2" bolts protrude. hope this clarifies.


If you are wondering if you have some movement, and you probably do, place your hand firmly on the cabover while driving down the road. You may be surprised at how much the cabover moves. It is fairly easy to troubleshoot, you just have to strip away whatever covers the seam and then check the condition of the screws (loose, broken etc.), and then take the appropriate corrective action. As noted larger/longer screws tightened up is at best a temporary solution.

Also when you open things up look closely for any evidence that water has gotten in/migrated and take the requisite corrective action there as well. I had zero water intrusion.

Hoping that the use of through bolts, lock nuts and washers will solve the problem.

:C