Newport question...

My brother has a 62 Chrysler Newport, with a tortion front end setup. Apparently, the control arm screws into the bar, and his threads are chewed up. The 'Zone and others can't help him find a replacement. Anyone know of something that would work from another Mopar?
There are forums for old Chyslers / Mopar. Allpar.com comes to mind. Good site and also has a forum. Great place to go for tech help. You may have to get creative in your searches. Someone out there has something for ya .