Roger B Succasunna , NJ May 09, 2016 Appliance: Whirlpool Washer WTW7600XW2 Whirlpool Washer Wtw7600xw2: Sd error code on wtw7600xw2 washer. How to replace Washer Basket Hub. After hunting the web for info on causes for this problem and finding only vague information, I found Appliance Pros website. By this time, i had narrowed the problem to either the drive hub or the Control board, which is about $150 difference in cost between the two!! I used the site's info on how to run the automatic diagnostics test. This gave me a C8 failure (drum wouldn't spin). I followed the directions for the manual motor tests and everything passed. I then went through the parts list and looked up the suspect parts. What Iiked the best about the site ( there wasn't anything I didn't like) was that when you look up a part you see what other people's problem were fixed by replacing that part. The vast majority said that the problem was the drive hub. I used the WTW6500 service manual to find out how to remove and replace the hub. The biggest difficulty I had was removing the drum. This was necessary in order to remove the shaft drive gear which is part of the drive hub. There was a buildup on the shaft that prevented the drum from sliding off the shaft. It took some force to pull the drum from the shaft. I kept wetting the shaft to remove any loosened residue and to keep the shaft lubricated. Be patient; it works. After taking the drum out, I removed the gear, cleaned the shaft with fine emory paper and waited patiently for my parts to arrive. I used priority mail and got them the following day. When I installed the new parts I realized what the failure of the old part was. The old drive gear rode easily up and down the shaft, which doesn't seem like a problem. However, the new part fit snugly on the shaft (it stiil moved smoothly along the shaft). I put everything back together, ran a rinse and spin cycle, and everything worked perfectly. I suggest that you also run a machine cleaning cycle to make sure any residue from assembly/disassembly are removed before you wash clothes. I was extremely pleased with the information on this site and the ease of ordering parts. 106 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours