Wadding cloths and wrinkling clothing during the wash

Hello techs, I had replaced adjitator dogs on this washer due to dogs being worn out. Weeks later customer called me back, said it was wadding and wrinkling the cloths, said it did not do that until I replaced the adjitator dogs. I went back and replaced the cam, thrust washer, and agin new dogs. The customer is still experiencing wadded and wrinkling of the clothes. Have you ever had this problem with this type of washer. What would you recommend to repair this problem. Thank you for your help.
Sincerely
Bill Tilley