My wife noticed a knocking noise on our front load Samsung washer. Lucky for me she noticed it before it got to extreme. I looked online and found the video from Appliance Parts Pros which outlined the repair even though it was a different brand. Once disassembled I found what appears to be the common problem, one of the arms was cracked on the drum spider. The drum bearings and seal was still in good condition. After inspection I found several parts needed replaced from the drum rubbing and being out of balance. In addition to the drum spider I replaced the door seal, balancer ring, tub seal and water guide. Parts delivered in a couple days and assembly was non eventful. Everything went well and the only suggestion would be to be sure and order new bolts for the drum bracket.