Here is an article on the M-11 and how B&M beefed up this transmission. I don't know how close it is to the M12. but maybe there is some info there for you. Toughening AM's Automatic - (From Hot Rod Magazine May 1969 -/- Text and photos by Bud Lang) July 2001 newsletter as posted at: http://clubs.hemmings.com/clubsites/classicamx/index.htm Go to this web page link and look on left sidebar for the newsletter. It is about half way thru the newsletter page... I heard of local trans shops replacing BW autos with FMC autos. Don't know if was entire Transm or if just the FMC guts in the AMC case. ______________________________________________________________ Ralph Ausmann - Hillsboro, OR - > <ralph.ausmann@xxxxxxxxx> http://mysite.verizon.net/res79g4m/ ... and "check the links" ----- Original Message ----- From: <farna@xxxxxxx> Sent: Monday, April 24, 2006 9:15 AM Subject: Re: [AMC-List] BW M12 tran question >I couldn't find any web references other than a parts break-down and some >hints at http://www.amccf.com/main.html (click Tech Info then scroll down). >I did find the gearing though -- 2.40 first, 1.47 second, 1:1 third (no >reverse ratio found). This is from a 64 Studebaker Avanti reference so is >actually the M-8 or M-10. But the Ford FMX was virtually the same >transmission and shares most internal components with the BW, just a >different case and valve body. A 68 FMX also has the same gearing -- can't >be coincidence. The 68 would be more like a M-11 or M-12. Note that the >Ford AOD is based on the FMX and also uses the exact same gearing -- with >the addition of a 0.67:1 OD gear. > > On April 23, 2006 CincyAMX wrote: >> Hello all, >> I need to find a site or reference material on BW M12 trans. Such as >> gearing, shift points and repairs. >> Thanks _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.wps.com/mailman/listinfo/amc-list or go to http://www.amc-list.com