Looking for a single new Michelin 175 R 15 ZX

[Tracy Drummond <bighealey@charter.net>]

This is a long shot but here goes.

I am looking for a single new (well NOS by now) Michelin 175 R 15 ZX to 
replace one.

These were discontinued last year.  Perhaps someone has a new one on a 
spare in their boot and has replaced the other 4.

I would be willing to trade for a new tyre that matches your other 4.