Double letters - tain't necessarily so. Some lockers were double, some weren't. Some doubles were lockers, some weren't. Somewhere around 1970 AMC started stamping the letters. Before that I've seen a tooth count stamped on the edge of the cover. Ken Quoting Wayne E Lamothe <superglider@xxxxxxxx>: > IIRC, one letter is an open diff and two letters (FF etc) means it has > twin grip. > > Wayne > Wayne & Lisa (Skeezix), Bolton Landing, NY > AMO#8454, http://www.superglider.thinkhost.com/ > 69 Ambo coupe, 401, M12, 66 Ambo 990 Wagon, 327,PW,PB,PS,posi,AM/FM,AC > 2003 Harley FLHTCI, 1978 GMC Royale motorhome > 2001 Cherokee, 2002 Caddy Seville Northstar V8 > > On Thu, 17 Jun 2010 12:33:40 -0700 (PDT) Joe Fulton > <piper_pa20@xxxxxxxxxxx> writes: > > For the later AMC 20s at least, look on the axle housing, right side > > rear, next to the differential cover. You'll see a letter or > > letters stamped there. I'm at work so I can't reference the TSMs > > for decoding the letters. > > > > Joe Fulton > > > > --- On Thu, 6/17/10, Wrambler <wrambler242@xxxxxxxxxxx> wrote: > > > > > > From: Wrambler <wrambler242@xxxxxxxxxxx> > > Subject: [AMC-list] Identify 65 AMC 20 > > To: "amc-list" <amc-list@xxxxxxxxxxxx> > > Date: Thursday, June 17, 2010, 12:14 PM > > > > > > I know the info is out there somewhere, but I don't know where right > > now. > > Are there external markings on the 20 somewhere as to ratio, > > twingrip or not etc? > > > > I hope to get to that phase tonight. > > > > As of now it is cut completely in half, roofless, firewall gone, > > floors gone, etc > > It's only connection is I have not pulled the front clip forward > > enough to seperate the torque tube. I have made sure it is unbolted > > and loose, a tug forward with the Jeep and a strap will do that > > deed. > > > > I have not decided if I will do anymore with the front clip for now > > or not. > > > > I will likely just concentrate on gathering all my scrap metal into > > one pile to dispose of it. > > > > At some point I will pull the heads and scope out the conditon of > > the block and pistons. > > > > Mark Price > > Morgantown, WV 26508 > > 1969 AMC Rambler, 4.0L, EFI, T-5 > > 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II > > "I realize that death is inevitable. > > I just don't want to be around when it happens!" > > _______________________________________________ > > AMC-list mailing list > > AMC-list@xxxxxxxxxxxx > > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > > <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/201 > 00617/4939b21a/attachment.htm> > > _____________________ > > AMC-list mailing list > > AMC-list@xxxxxxxxxxxx > > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > > > > > ____________________________________________________________ > $250,000 Life Insurance > No Exam Policies. Same day coverage & policies from $6/mo. Free Quotes > http://thirdpartyoffers.juno.com/TGL3141/4c1a7b16ca9ff7422cm08vuc > _______________________________________________ > AMC-list mailing list > AMC-list@xxxxxxxxxxxx > http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com > _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com