Product review (1 stars): This part is a Samsung Defect - Do not purchase these brackets
Be careful replacing this part if it breaks.  Our new Samsung dishwasher suddenly started to make a very loud grinding sound.  $180 in repair charges later... the Samsung repair technician told us never to use this part as they are defective and one of the main reasons he is so busy repairing Samsung dishwashers.  A piece broke off of ours and got into the pump.  Luckily we had turned the dishwasher off before even more damage occurred.  Samsung is saying they are not aware of this issue - but their own review site says otherwise as many people have written in with this same issue.  The customer service has been horrible.  $90 just to come to the house, $70 for a 10 minute repair to remove the broken part.  The tech told us to leave these brackets off and do not replace them.  Our racks won't go up and down anymore - but hopefully we won't damage the pump or motor either.