Tim, or anybody else,
Can you get that rubber endpiece that goes on the vent selector vacuum cable and mounts on the 'christmas tree' near the brake booster?
I went to the local Ford dealer and their parts department cannot get that particular part. They have other ones but they don't look like they fit as one is at a 90 degree angle and the other is smaller.
It's probably the same one as on your wife's 95 vert.
I tried 4 junkyards around here but none have 94-98 Mustangs. :-(
I have an image of the part in question at:
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Thanks in advance