I changed the oil in the transmission and transfer case today in my 82 FJ 60. I drained more out of the transmission and less out of my transfer case . (About 1 1/4 gallon out of the transmission and only about 1/4 gallon from the transfer case.) I read somewhere on this site about a possible vent problem on the transfer case causing this but I can not find the post. I felt around on top of the transfer case and found the vent . I wipe it off with a rag . It seems to "jiggle" side to side and up and down like a relief valve on a pressure cooker. Any help will be greatly appreciated.