Hi George, Chrysler Engine Fan Summary - For both non air & air. 1957 with non-thermal clutch - 6 Blades, 18" Dia. 1958 with non-thermal clutch - 5 Blades, 18" Dia. The chart does not list a thermal clutch, only non-thermal with a picture of the clutch. See article #21 at Tech Web site. Gil Cunningham prepared this summary. Wayne Graefen's Chrysler 300C Handbook, shows the standard equipment Fan as "Silent Flite Drive(limits fan speed to 2,500 rpm)(formally called a "Schwitzer Drive". A picture of this drive is shown on the Tech web site. This is the original type on our 300C. See you in Carmel, CA on Sunday. We will not be bringing our 300C or our 1970 300 Convertible. John & Arlys Chesnutt, Portland, OR -----Original Message----- From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of George McKovich Sent: Tuesday, May 31, 2011 12:06 PM To: Intl 300 Subject: [Chrysler300] Fan blades How many blades are supposed to be on a non ac 57 300C with the thermal clutch? Thanks George Sent from my iPhone 4 ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> 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/