Steering Rack rebuild

[KMracer007 at aol.com]

Hey all, my dads V8 has been eating power steering fluid for the last month or so(don't worry we have been putting penosin into it not ATF :). I had crawled under and checked all the lines for tightness and for any leaky fittings. It looks as though the rack itself is leaking and I believe in need of a rebuild. Any BTDT on where to get a new rack or a good reconditioned one. heck even a good used one would be nice right about now. Any help/advise would be great. thanks!

~Kenny

90 V8q
85 4kq
75 Datsun 280z (mmm turbo'd)