think im going a bit soft in my old age cos im converting my 90 to power steering, anyway ive got a complete set up with a four bolt box, as i want to make sure i got all the bits before i start this job, rather than getting halfway through an been missing something, ive got two questions firstly are the splines on the column side of the box the same as a manual box? and secondandly which drop arm do i use the original, or the one on the ps box? this is flatter an doesnt drop as far down, think it was of a disco? thanks in advance