Hello, Thank you for using this service, I will be helping you with your problem today.
good morning. you have the agitator off already ? how did you check the drive block ?
i put the agitater back on but have not checked the drive block or know of it's location
okay, this is the drive block which is the drive coupling.
this is most definitely your issue, these sometimes feel tight but under pressure they clunk when its agitating. this is located right under the agitator, its a cheap part. $5.85 at the following link. http://www.repairclinic.com/PartDetail/Drive-Block-or-Bell/WH43X10032/1264702?modelNumber=WJSR4160G1WW this will fix your issue, you need to replace it. hope this helps, thanks , Bryan
i actually looked at this part and it appears that there is no wear. on it would this still be the problem