I went through some real high water in the K5 and must of sucked up some mustard. Not really, but when I changed the rear transfer case seal it looked like mustard was pouring out. Is there a way to flush it out with out taking off the pan? I know I will have to do it at the end to change the filter, but i want to get all the fluid out of the converter too. Any ideas on how to do this. thanks.