hello guys.
i'm back, and i need your help.
my friend that i sold my car to, came over last night for a drink, and told me that he thinks he is missing some steering fluid, since he can hear the pump making noises when turning the the car.
we took it for a spin, and noticed the noise only on left turns. we drove the car back to my garage thinking to add some fluid and get it done. since he also needed an oil change, i offered him to take my car, and pick his ca tomorrow,after ill get it done. (after all he came for some drinks

)
so i put the car on the lift and opened some bears.
today, when i got back from work, i found a puddle of steering fluid on the front passenger side.
so what are my options?
a new rack is around 1K.
refurbished is 350-450. i can get one from ebay for 150-250.
beside the leak, the steering functions well.
is there a way for me to rebuild it myself?
the parts diagram shows a $4 sealing ring that goes on the rack (part 4).
is that simple as that? or there is more to it?
gonna do some reading on the Bentley book and the 101, but will appreciate any advice
thanks.
Meir