Hi, Evan. Just did the rear brake pads on my '90 yesterday.

Always order the hardware kit along with the brake pads - you never know what will break or fly off to an alternate universe until you get in there.

To reinstall the pins on the ATE rear calipers, I use my hammer - but not in the usual way. I press them in with the claw end of my 20 oz. straight claw hammer. As you did, I used the little attachment aft of the caliper as the fulcrum. No hammering needed, the handle is plenty long enough to provide sufficient force. Be careful of the bleeder valve when doing the top pin.

Have you tried the elegant approach? Tap it in using a long pool cue from under the other side of the car. Ladies' aid is optional. You must call the pins before you hit them. One foot has to stay on the shop floor at all times. ... Actually I use the hammer, giant plier and/or crowbar methods -whichever tool is handiest.

One tool I really do like for caliper pin removal is a spring loaded nail set punch (Stanley makes a proper one, but the bargain bin variety will do fine). Sits squarely over the end of the pin so you can strike it without it shifting and accidentally dimpling the caliper. The punch drives nicely into the hole, just enough to pop the pin free. One embarassing moment I was demonstrating this method on a Girling brake (the kind with the hairpin clip pin retainer). I managed to drive the pin out real nice, but it took a little more effort than normal. Needless to say the clip didn't survive.

Evan, on the rear pins I just use a pin punch, about 5 mm in diameter, along with a whack from a hard mallet. Works like a champ. The trick is seating the rubber seal, which tends to cause the pin to bounce outwards until it finally seats.