Thursday night / Friday morning we had some very heavy rainfall. Friday evening, we decided to go downtown to eat, and I wanted to take the wagon, since I don't worry about parking with it
By the time we parked (about 10 min or so driving) we both had wet butts. Turns out the glass roof panel leaks like a sieve. The sealant between the glass & metal frame is gone on both sides - tried to photo it, but basically it just meant there is a large gap from water to travel under these, then into the inner frame lip & dump directly onto the seats.
I cleaned it all up, got rid of the minor surface rust in two corners, and applied butyl around the perimeter, pressed into the gap on either side
Put the seal back on (backwards, it turns out) - opening was supposed to be at the rear. (EDIT - maybe not - I have it the same way in the earlier pic from first install).
Poured water over it, and it looked good - until about 20min later & then I saw it seeping through. So, better than before, but not fixed. I removed the panel again, stripped all the butyl, and prepped the edge for a good silicone sealer.
I also decided to drop the tub & chop off the back inch or so, and recap the new ends
I also drilled a new side mount toward the rear, since I may have to chop the existing rear mount off altogether. used a 12mm barrel as a spacer on each side
Around this time, we got a National Weather Emergency Alert for a sudden extreme snow fall - and sure enough, right after I put a piece of plywood over the roof hole, we got a rapid downfall.
I put the tub back in anyway, and reattached the drains.
I now have the rear of the roof panel just over an inch from the roof opening, so I can shorten the overall depth of the cab by that much. The point of all this finagling is to get the tailgate as far forward as possible so I don't (hopefully) have to chop the gate the way others have to get it to swing clear of the wheel arches.
The silver marker line is 1.5" from the roof lip. The cross (drain) bridge sits about 1/4" or so forward of it. The aluminum end caps I will cut down & clean up when I drop the tub to weld the chopped roof. Much happier with getting that extra inch reduction.
I will be chopping out the steel cross brace back to that 1.5" marker. The rear "D" tub will sit right behind that, so no need for it in terms of structural roof support.