DL,
Obviously you dealer wasn't as anal as mine. I got them to look up the TSB on the clunk because they knew nothing about it. Once they confirmed there was a problem the parts were ordered. I already had Herb's washers in hand and showed them to the service writer. I was going to do like you mentioned and try to get them to install them in place of the toothed washer. He looked at them saying they should work great but since they weren't a Ford part that they would not install them. The only thing I could get them to do was center the bolt with the new toothed washer and then do an alignment. I told them at least that way if it moves in the future I could install Herb's washers and the alignment should be ok. Who knows if they lived up to that end of the bargain. Needless to say I took it to another dealership when it was time for the intercooler replacement.:m