Code 'B (open)' or 'P (twingrip) up to '79. (Assuming you're talking AMC model 20 differential) 41/13 tooth count. Ken Ames Quoting Jim Blair <carnuck@xxxxxxxxxxx>: > anyone hear of 3.15 M20 ratio? > > http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4504139022&sspagename=ADME%3AB%3ASS%3AUS%3A1 > > > > ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/