Isochord says that their 0722 is an exact match for ARC 1520. Joel --- On Sun, 2/27/11, theboards@xxxxxxxxxxxxxx <theboards@xxxxxxxxxxxxxx> wrote: From: theboards@xxxxxxxxxxxxxx <theboards@xxxxxxxxxxxxxx> Subject: [amayausers.com] Re: ARC Thread #1520 To: amayausers@xxxxxxxxxxxxx Date: Sunday, February 27, 2011, 3:15 AM This message was posted by Steve on AmayaUsers.com. PLEASE DO NOT REPLY VIA EMAIL. Instead, respond to the thread on the WEBSITE by clicking here: http://www.amayausers.com/boards/cgi-bin/ultimatebb.cgi?/topic/1/1132.html#000002 I would suggest picking up a thread chart from another thread manufacturer and start converting over. Since Maderia took over ARC, they might have the Maderia number that matches it. =========================================================== The AmayaUsers Mailing List Website: http://www.amayausers.com Discussion Board: http://www.amayausers.com/boards Subscribe/Unsubscribe: http://www.amayausers.com/list ===========================================================