I swear, just when I thought I knew something about something, it dawned on me that the plain old 341241 belt that has been used on all Whirlpool dryers since Methuselah was a child also fits the dadgum Performa. Wish I had figgered that little jewel out a few years ago when I ran out of the Magic Chef belt.
Guess we live & learn. Those sneakity bastages at Maytag had been secretly transforming the Maycor platform into WP design behind our backs...oh well.