challenger leaking power steering fluid

[DaveScrivener]

My challenger seems to be loosing it's power steering fluid. The problem is that it doesn't seem to be a constant leak and then it will suddenly loose loads. I've just took it for the MOT and on the ramp we couldn't find any wet areas apart from on the tie rod ends where the fluid had dripped down. From where the puddle was, it looks like the leak may be coming from where the column goes into the steering box. I guess that it's a case of taking this out and replacing all the seals. Does this sound right?