I am just about to start this but the Haynes manual is telling me I have to remove the power steering unit first to avoid damaging it, is this absolutely necessary??!
From the book (chapter 10 section 17):
Tie-rods and balljoints (power steering) - removal and refitting
"Remove the steering gear unit, together with the tie-rods from the car. This is necessary to avoid damaging the rack and pinion."