screenburn

I have 1993 LS400 with 172K on it. I have fluid leaking at my steering rack near the universal joint that connects to the steering column. I checked all of the hoses going into the unit and have found no leaks. It appears to be comming from the large plug on that unit. Any ideas on what to do. I also have a leaking power steering pump which i will be replacing, but i need to get all of the problems fixed at once.