I made and fitted a roof top storage box (internal) that fits over the rear seat of my JKU, between the speaker bar and the rear roll cage bar. The box measures 140 mm deep (using 140mm x 15mm smooth pine as back and 2 sides).This is deep enough to hold a standard can. Top and bottom r made of 3mm plywood. These have been screwed to the pine. Opening faces rearward. Length is about 1480mm x 400mmm wide (this could be a bit less (say 350mm) to allow easier placing of things inside). Painted black. The depth is such that it does not impinge on the view through the rear mirror.
To secure the box, I have used 3 L shaped brackets screwed and bolted to the sides of the box. Two of the brackets simply sit on top of the roll cage immediately above the rear door, and give it stability. A third bracket has been bolted between them and this is also bolted through the roll bar in an existing hole about in the middle of the bar above the rear door. These bolts stop the box moving up and down and backwards and forwards. The clearance between the box and the roof is about 10mm. You can adjust this by adjusting the L bracket position on the side of the box. I made mine flush with the top of the box.
It's a bit tricky getting the box in place so, if u make one, leave one side off (after pre-drilling holes etc and fixing the L brackets). Secure the opposite side (you will need to support the other side with something tall) and then fit the second side. Do this, or you wont be able to fit the box without removing the rear soft/hard top.
All up, the box cost less than $40.00. I used spare bits and pieces that I had lying around the garage and shed. It all works a treat!! Pic #1: box in place; #2 Looking from the rear of the JK; #3 the bolt through roll bar; #4 roof clearance; #5 bracket arrangement (the short end attaches to box side, the long end sits atop the roll bar.Middle bracket had extra hole drilled in middle to attach to side of box and so as to line up with the roll bar hole).
Last edited by humdingerslammer; 25-05-2013 at 10:58 AM.
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