Found that I have a leak where the two pipes go into the top of the steering box, tried to change the o rings but didn't work so I've ordered the genuine o rings from landrover and have been told they come in a packed of four 2 green and 2 brown. I know 1 of each colour goes on the recessed part of each pipe but not sure where the other 2 go? If anyone could help it would be much appreciated

brown are for high pressure pipe(feed from pump)green for low pressure pipe (return to res)they are 2 separate thicknesses choose the right 2 for your box

Thanks for your reply, so you don't use all 4?