I'm ready to order my new hydroboost because my PS resevior is puking fluid everywhere, and yes I've replace the pump already. I plan on flushing my system before I take the old one off that way there won't be any contaimanted fluid in the system. Now the ????. Which line on the PS pump is the return line...the top or the bottom? Any hints to make this as painless as possible?

 

The line with the clamped rubber hose. The pressure line is a threaded fitting.

 

I got it done and I guess I fixed it. The brakes feel about the same as before but now its not puking fluid out of the PS resevior . For $200 I was expecting the brakes to be different but I guess that wasn't my problem to begin with but overall I'm happy with the results. A FYI to anybody who's going to do this, go ahead and pick up a brake light switch while you're at the parts house because more than likely your old one will be out of tolerance for a new hydroboost. Overall it was a 3 beer project.