KWESHAZ

Nissan Skyline Steering Rack problem

Hallo guys I am back again but this time with a Nissan skyline steering rack problem.There was sound coming from the front when turning the vehicle and on checking I realized that the power steering fluid had bubbles and was quite low in the reservoir.I  topped up the steering fluid , suspended the front wheels then turned the steering several times lock to lock to remove any trapped air.Quite satisfied the level was no longer dropping I then tested the car.When turning the car the steering wheel sort of vibrates and on inspection of the power steering housing and cylinder assembly I saw some fluid coming out of both inner tie rod clamp boots.When I removed the clamps on the boots a lot of fluid came out.

Now my question is has anyone faced this problem and is it possible to change the seals rather than the whole steering housing and cylinder assembly.One mechanic says change the whole assembly but its quite expensive.Also what could have caused these seals to give in.Your assistance will be greatly appreciated.