Before you spend some time on removing the gearbox, it is worth doing a hunt as I have a vague recollection from years ago with the B5 RS4 and 01E gearbox that there were occasions when a different pushrod was required. I think I have one in my car, the take up point is very different from others. I'll have a hunt through my stuff but you won't go wrong if you chase up that idea before ripping out the box.