Well I have known for some time my rack has been a little on the wacked side cause when I drive it pulls to one side until I stop and turn the wheel the other way till I hear a noise then it pulls to that side. If I hit some good bumps it tracks straight. About once a week I have to add power steering fluid. Here take a look. Sorry the pics are so big but I wanted you all to see the problem good. I think it is safe to say it is leaking from what use to be the boot on the drivers side. The power rack is $219 + $100 core from black dragon...think it would be cheaper to fix this one? LOL my luck rocks!

 

Here man try this thread it should help you out. At least give you an idea. I know when I had the problem. I just left the pump off, and steer it manually. Once you get used to it, it isn't that bad. And now I don't think I would ever go back to power steering. Anyway check this thread out.

https://www.zdriver.com/forums/280zx-brakes-wheels-suspension-chassis-81/steering-gear-boots-16200/

 

yea, i gave up on PS on my z, see if you can hunt down a WRX steering rack..