Auburn Posi (news to me)
 

I had always heard the Auburn units weren't rebuildable and there was no warranty . Come to find out they've got a great exchange program. Send in your old unit (must be Auburn and less than four years old) and $85.00 and they'll send you a brand new one. They even let me upgrade to the "pro" for an extra $15.00. It's great to have posi again!

http://www.auburngear.com/aftermarket/drex/