Thanks!
With information gleaned from many archived postings with generous
descriptions, I managed to change the sliding door handle.  (And thanks to
Craig, Scott K and Jim Felder for help on p-mail.)

Should have been simple, right?  Ultimately, I had to resort to hammer and
drift to get the old handle out of the square-ish hole.

One question: Repairing the door handle seems to have caused a coolant leak
at the oil cooler -- has that happened to any of you?  :)

Wish I could trade back:     broken handle -- no leak.

Cheers,
Gabby