The one you're probably thinking of is in the EPC.
I don't know if anything changed with year, so below are both pre89 and 89+
Pre89 - http://www.cygnusx1.net/Supra/Library/EPC/291410/catalog.aspx?Figure=1708&Page=3
89+ - http://www.cygnusx1.net/Supra/Library/EPC/291420/catalog.aspx?Figure=1708&Page=3
I don't know if anything changed with year, so below are both pre89 and 89+
Pre89 - http://www.cygnusx1.net/Supra/Library/EPC/291410/catalog.aspx?Figure=1708&Page=3
89+ - http://www.cygnusx1.net/Supra/Library/EPC/291420/catalog.aspx?Figure=1708&Page=3