The Engineering Data Book revised 1/3/1956 for the 300B states: Auto-Lite P/N 1569 264 for 300B and Willard P/N 12H-70 for 300B ***** 1957 AMA Specs state Auto-Lite 12H-70 ****** 1958 AMA Specs state Auto-Lite 12H-70 or Willard HO-12-70 (12 volt, 13 cell, negative ground, Amp Hour rating - 70) ****** 1960 AMA Specs Autolite (Note no hyphen)12-H-70 or Willard HO-12-70 (12 volt, 78 plates, SAE designation 3 SH, 70 Amp Hour rating, negative ground) I guess you can tell which Letter cars interest me! Gloria Moon To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/