I rekon you are right, going to remove the old seal today and see what happend hopefully. Problem is funds are tight now, am wondering if it is possible to buy a better seal direct from land rover or a hydraulic shop. Otherwise its £50 for a used box, not to mention the lost work....It's abit of a coincidence that the seal gave away soon after the garage man had been hammering the crap out of the steering arm to get it loose enough to adjust, but it was not excessive and I also drove over a large turf sod at speed that a lorry had dragged into the road, but barley felt it even though it was big. Everything was going so well no drips at all since it was replaced. Maybe the circlip wasn't seated properly and its just needs putting back in, that would be good!!