If you can get your hands on a remote camera to take a look back there and see what's actually leaking it might save you a lot of aggravation. Also, are there any drawers or cabinets next to it that you could take out to get a look? I would think that taking the fridge out is gonna be a real pain. Just my .02. Good luck!
2012 FORD F-350 SRW CREW CAB 6.7L DIESEL
2016 PINNACLE 36FBTS