3862527 is the GM number for a 4.56 ring gear; 9 41 is the pinion and ring gear teeth. Can't help with the 4 67 though. Casting numbers don't ring a bell either. ? No pictures came through the mailing list.
Dale McIntosh <http://www.chevellecd.com> 1966/67 Chevelle Reference CDs ACES #1709/TC GOLD #92 <http://www.chevellecd.com> _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of William Piper Sent: Wednesday, February 14, 2007 8:13 PM To: 'The Chevelle Mailing List' Subject: [Chevelle-list] Identifing a posi unit All I did some horse trading awhile back and end up with this GM 12 posi unit. It looks to be a 3 series carrier with a spacer with a 4.56 ring and pinion. The number stamped on the ring gear is 1 GM 3862527 9 41 4 67. Can anyone confirm this? I'm making the assumption that 4 67 is the manufacturing date. The cast numbers on the carrier are- EDB-30140 2 and a 301 at the bottom. See attached pictures. Any help would be appreciated. Tom
