I just replaced the pads...on the drivers side so far...on my 2002 sequoia. First I tried the hammer and punch. That ended up mushrooming the end of the pin.
Eventually I used an air hammer and sheared the pins off from the inside of the caliper. The pads came out with the sheared middle portion of the pin.
Then I had to take off the caliper and used the hammer and punch to knock out the outer flanged piece of the pin.
The other end that I mushroomed would not budge one bit with the hammer and punch. I figured I wedged it in there pretty good.
I ended up drilling through the pins with a bit slightly smaller than the pins.
Then I used the punch and the pins FINALLY came out.
Of course this was on a Saturday and the Toyota parts is closed until Mon... Hopefully the passengers side will be about 4 hours less work