Product review (5 stars): Easy repair using OEM parts
Works perfect. No problem tapping  disc onto the motor shaft, perfect fit. No problems tapping the disc onto the transmission shaft but it was just a little tighter than I would like-  it took a few more light taps than the disc  installed on the motor shaft.. A tighter fit would be unacceptable. I used vasoline to lube the shaft and disc. No burnt rubber smell when washer is running as some reviewers commented.
Easy repair. I was nervous about the disc fitment after reading reviews but the repair went well. For best results use genuine Whirlpool parts-easy installation  and they last longer than aftermarket parts.
Warning : Place a socket or something similiar over the center of the disc to drive it on the shaft. DO NOT strike the fingers on the disc to drive it on, they will break.