Hi TB
The whole thing is made up as follows First off I cut 8 lengths of 1 inch square tube about 3 inches long, then welded them together in pairs side by side, after that I fix them to the trailer by drilling through from inside the trailer and tapping the holes in the squares and bolting them to the trailer with a strip of metal on the inside the trailer that was epoxided on to act as reinforceing .
Part two! I then cut 4 pieces 8" long and here comes the clever bit I had an old wheel nut spider that I cut up and used the 4 legs ie round steel that fitted into the 8" bits then welded them together, put them into the bits fitted to the trailer and mark where they poked out the bottom then drill holes in the round bits to take an "R" clip.
Then makeing sure the "R" clips are in place I then welded a length of 1" tube across each pair of uprights, a couple af coats of paint and job done!!
Fix roof box to the cross bars Load up Go camping
The reason for doing it that way is you can just pull the "R" clips out and lift the box off.
Hope that is clear , if not just ask.
------------- David
I've stood on Lego and didn't even cry!!
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