Fred, Your best bet is to take the core to a reputable radiator shop, they will be able to re-core your unit for a reasonable cost and keep the original fit and parts in use. That's what I did on my 300G years ago. Do make sure though, that it is the core and not the temperature control valve, as they will leak also. If the leaking is occurring from under the dash and making the carpet wet on the passenger side, it may be the valve. They also can be rebuilt, there are services for that and kits you can buy to do it yourself if you want. Bob J From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Fred Grossi Sent: Tuesday, February 05, 2013 12:41 PM To: Chrysler300@xxxxxxxxxxxxxxx Subject: [Chrysler300] Heater Core Hello Group, My heater core is leaking in my 1960 300F. Can these cores be repaired or must they be replaced. If it has to be replaced, any sources for this part would be greatly appreciated. Thanks, Fred Grossi Arroyo Grande, CA [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ 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/