Hello, Yes there is a trick to installing new bearing & holders. Here's what works for me, remove the rack stops if you haven't already and then the rack itself. With the rack out of the way, remove the bumpers at the back of the rails which will allow you to perform the re-installation.The trick now is to install the balls into the holders and the holders into the stationary part of the rail on the inside wall. The inside wall rail will keep the holders in place as you slide the inside rail into place...this will usually require holding the holder with one hand while pushing the sliding rail back into place. ( I should do a video of this on you-tube with how many I've done and tried to explain ). Once this is done, re-install the back rail bumpers followed by the rack and then finally the front rack stoppers and that should do it. Hope that explain it for you or gives you an idea of how it needs to be done. Thanks for visitng "fixya" today for your repair help. Let me know if you require further assistance. Good luck. Macmarkus :) P.S. I should also mention you want to be sure none of the old 8 balls didn't fall down into either the drain pump or circulation/wash pump. This is something I've seen far too often on Asko dishwashers with the end result being a broken impeller in either pump...or both, yikes ! I use a telescopic magnet to fish around as it will be the only object made of metal...unless something else has fallen in the sump well area, it's good to check. Again, good luck :)