I need to buy a drivers side engine mount, but there seem to be about half a dozen ones to choose from. I could buy it from Nissan but expect it to be expensive ? There are various markings on the original, I am guessing that you look at the colour marking on the central block (White) and read from the list on the top bracket ? I have; 1210 AX600 White All of the aftermarket ones have different markings, the one I was told that fitted only had two of the three fixing holes that lined up but I made it fit, also the centre block is colour coded green. The flex part of the mount seems to be quite stiff and resonates the engine vibrations all over the dash. Is there anyone else that has had this problem ?