looking thru ebay and saw a 3.14 diff ,just thought id share that with you alan
http://cgi.ebay.co.uk/3-1-Sierra-differential-Kit-Car_W0QQitemZ200148149264QQihZ010QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[Edited on 2/9/07 by afj]