I assume you are talking about fluid leaking from the steering rack bellows (aka boots). Sounds like you will need to replace the rack and pinion seals. A rack and pinion seal kit will probably only cost about $30 but it will be labor intensive to install and is something that should done by a skilled mechanic. But you can probably buy a complete remanufactured rack and pinion unit for about $150 and easily install it yourself. The only other expense then would be to have the toe-in set by an alignment shop.