If you can, try and remove the inner side of one of the boots. If when you take it off if the boot is filled with red/brown liquid, yeah, the rack is failing. However, I was able to use the power steering stop leak which actually kinda worked, it didn't get all goopy either. No more leaks! That is, until I spun out on a slippery road and hit a curb, which effectively ended the life of my steering rack. The way I see it, if you rack is failing, putting in the stop leak can't make anything worse at this point... I had tons of metal shavings in the fluid so I knew my rack was toast!
Even then, replacing the rack itself isn't that hard. The only hard part is if you have never touched the bolts or if you have rust, then an impact wrench is almost a must. I was able to man-handle it by lifting the front end up a lot and using a very long breaker bar but it was not easy. The rest is simple, a couple of hard lines, sway bar, take off the outers (I bought new ones though) and that's it. Only tricky part is to MAKE SURE YOU DON'T STRIP THE HARD LINE NUT. I almost did this by accident but was able to rethread the rack and saved it.
I had red/brown fluid in my boots as seen in my post on the previous page. Do you know if the stop leak would have any adverse affects on the inner tie rods if it were to get to them? Keeping those in good shape are my primary concern since they were so expensive and I just put them on. I'd really like to avoid replacing the rack if at all possible.