It was a Safari snorkel for a TJ modified. i had a guy I know do this. He welded the box, it has 4 screws holding the lid to the box down once you take those off, there is a gasket around the inside making the box water tight. I have the Weber carb and the filter is on top so he has it so all I have to do is unclamp on the inside to remove the filter. I told yall i was gonna get this done, and it finally happened. I could not find anything on the net about doing these on CJ's eithier. But i spoke with manufactuer of the snorkel and he said it could be done with the one made for the TJ series. You need to be good at fabrication to do the box, but the rest was easy. I will get yall more detailed pictures after hunting season, but this thing is about to go to the woods.