You said:
"I believe both are susceptible to the same plastic part breaking."

Actually, on ours, the plastic pully doesn't break, but rather, the
cable cross-winds on the plastic pully; i.e., the cable does not go
into the groves in the pully as it should; instead, it crosses-over the
grooves, causing the window to stick in whatever place the cross-over
occurs.  I can't figure-out what causes this to happen, but the cable
always is somewhat "chewed-up" in the process, so maybe the cable
breaks a strand that causes the rest of it to go awry.

Can you, perhaps, shed any light on my later question on this topic?
At present, I've tied the window up with plastic cable-ties and
supported it with a wooden stick wedged under it, but it's kind of
unhandy since the driver's window is used for so many drive-up
activities, so we have to replace the regulator but would like to do it
as cheaply as possible.

Thanks for whatever advice you can provide.

Lee

Subject: Re: Further to My ? on Sonata Power Window Lift???

Since no one responded to my questions on the frequent failure of the
power window lift on our 98 Sonata, I have to assume this is a unique
problem to our vehicle.  So, to the next question is: Do any of you
know of a cheaper source for this power window lift.  Our local dealer
quotes $103.05 for the part, plus 7% sales tax which makes the total
over $110.00.  Our local salvage yard does not have one in stock, but
they quote $125.00 delivered, in 3-4 days.  Surely there must be a
cheaper source since the first of these I purchased from the dealer was
about $80.00.

Thanks for any advice you can provide.
Lee