Thanks for the replies.
Today we disassembled the caliper to get a closer look. The lower pin was really stuck. Eventually got it loose, cleaned/polished, lubed it up and reinstalled. Whew! I'm glad I didn't need that bracket. If you pull off your calipers it might be wise to inspect these pins while your in there. The other pins were fine.
Getting new front calipers didn't fix this problem, but upon inspection we found the seal looked marginal so rather than sending them back we went ahead and put them on. I bought them for $150 each, which was better than the first quote at over $300 each (!).
Here are some pictures. The first picture shows the caliper bracket and the pin that was giving us so much trouble.
Last edited by chuck95e300d; 12-31-2003 at 05:57 PM.