Took about 10 minutes. Follow the directions in the Appliance Parts Pros video. I ended up prying the old coupler off with a large flat blade screwdriver. The coupler is an aluminum plate covered in rubber. I cut the rubber off the coupler plate with a sharp blade so I could see better. The aluminum is a softer metal than the steel motor shaft, so the coupler came off fairly easy. Just be careful not to mess up the threads on the shaft with the screwdriver.