Product review (5 stars): Good Parts
I have wfmc5301uc/16 bosh 500 nexxt plus washing machine and my install process was very similar. Old seal came out fairly easy as it was badly damaged. I had to use torx t20 screw bit to take out most of the screw. You need a wrench to take a concrete counterweight off (I forgot the socket size). Make sure to remember spring retainer orientation as well as the way 2 washers that hold the counterweight are oriented. I also loosened right counterweight bolts a little to give more room for gasket and retainer ring to fit. Inner retainer ring went on with just a little elbow grease. The outer ring is a major pain in the ass because when you try to work it around the opposite side of gasket just slides off the groove. Very frustrating! I haven put in on yet but did an empty wash cycle and it works alright. I think the way to go is to start at 6 o'clock and work clockwise then use vice grips to pull the spring and hold it in stretched position with someone working the rest of the retainer around. Definitely use a helper is possible.

I did not buy it from amazon just thought I give some useful tips.