Product review (5 stars): Clean the groove out before installing.
Our gasket kept pulling out of the groove after running a cycle and opening the door when a vacuum was created.  I replaced it with this and it works great and stays in the groove.  I'd recommend brushing out the groove with a toothbrush before replacing your gasket.  Also, do not use any oil, lube, or glue with this product unless your dishwasher says to.  I spoke to Whirlpool and they informed me not to use it in my model.