What year did Evinrude stop with the Electric Shift? My 1970 115 has it, and the guy selling the lower unit on E-Bay listed below says his will work, but I am not sure, Can anyone help?<br /><br />Ebay Item # 4573577876 or http://cgi.ebay.com/ebaymotors/OMC-...ewItemQQcategoryZ50439QQitemZ4573577876QQrdZ1