http://cgi.ebay.com/ebaymotors/90-96-NISSAN-300ZX-HATCH-DOOR-GLASS-REAR-WINDOW-TRUNK_W0QQcmdZViewItemQQcategoryZ33656QQihZ017QQitemZ270175571301QQrdZ1QQsspagenameZWDVW
Hopefully it was the rear. And eBay can save you.