Replaced the pump motor which had bad bearings. You need to disassemble the pump / lower spray arm assembly from inside the dishwasher, then remove the dishwasher, lay it on it's back and remove and replace the motor on the bottom. Relatively easy job, but time consuming due to all the steps involved. Took me about 2-1/2 hours. Found a couple of videos on youtube which made it very easy.
Appliance Pro was very quick and good pricing. Would definitely buy from them in the future.