The minimum distance between the bed rails and overhang of the RV is 6". I would consider that the bare minimum. I have our hitch set so that there's 8" clearance. That gives us a little more leeway in some campgrounds where the roadway isn't level with the campsite driveway or pad.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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