yeah i was told the same that if your lowering it more than 50mm then you need a modified track rod so that it does'nt rub through the power steering pipe. im doing mines on saturday and i dont have a modified track rod so just gona do it and c if its gona rub or not. i checked at halfrauds and phoned spax and both dont have a clue what i was talking about so im assuming such a thing dusnt exist.