I had to take mine out and apart , clean and lube everything and sand down the side locator tabs a bit since they swelled up in floridas humid air. once that was done it went back together (still tighter than heck but I got it in.) now to finish up the lens pieces that I broke. First try wasn't so good , got the translucence factor wrong. and bubbles(but I didn't degas it either,just mixed and poured.) next try should work but I want a clear"ish" one this time it does fit and work but looks UGLY!!!!