Fatally worn drive sprocket/coupling

This really was a snap, and allowed me to resurrect a great heavy duty machine from Goodwill. The hard rubber drive coupling on the unit was worn to nubs. Examining the unit, I thought I'd have to tear the whole thing apart to disconnect the old piece. But the instructions on this web site indicated a little GENTLE brute force, prying the old piece off the drive shaft, was all that was needed. And this was indeed the case. I thought that the instructions might be in error because there is a metal base underneath the rubber coating of the coupling, but if you work the piece off patiently with a screwdriver (I used a cloth as a buffer to make sure I didn't mar the blender housing) the drive shaft is left intact and installing the replacement is a snap...just make sure to clean off any residual shavings from the old piece, and reverse screw the new piece onto the shaft. Works great, self tightens with use.