Bigfootchevy wrote:
Tried the 1 inch foam and it worked fine. Cannot say better than plywood but at least it lighter and I believe more flexible.
Cannot figure out why GM changed the box of the 2015 trucks so that the box sides are higher in the rear than the front of the box.
Seems to cause some forward rocking of camper. The camper seems more flexible than it was with my 2011 truck.
Paul
Paul, in this link from the projects page, wood framework is used for support. You may not need the alignment blocks but the cross beams may offer some support to stop the rocking.
Alternate method:
The last pic shows how the foam board was glued to the bottom of the camper where it fell on top of the cross members secured in the trucks bed.
http://www.rv.net/forum/Index.cfm/fuseaction/thread/tid/16957495.cfmBob
