If I remember on those you can lift off the rubber sleeve pass it over the
pin.  You can do it on the vehicle then heat the slider and the top of the
pad holder till it get really hot you can move it with a wrench.Watch out
they can pop out when hot...
Then take a old bolt smaller then the pin take a hack saw cut it down the
middle. Put a piece of sand paper in the cut put it on your favorite drill
and clean the guide for the pin, buff the pin use a good synthetic grease to
lube it up with and you should be good till next time.