try this link.
http://cgi.ebay.com/ebaymotors/87-93-Ford-Mustang-Lrg-case-6G-Alternator-Comp-KIT-3g_W0QQitemZ270212491644QQihZ017QQcategoryZ33573QQrdZ1QQssPageNameZWD1VQQ_trksidZp1638.m118.l1247QQcmdZViewItem
this guy is selling a 6g with wiring and has a picture of how to wiring it in the...