Hi Bill I have finished doing the conversion to my 300C with a 69 Dodge master cylinder. It is a bolt up job including push rod. As it is for drum brakes, it comes with residual valves. Bore is slightly smaller giving a bit more pressure. Not sure which one you are talking about. Mine has a flat bolt down top which clears the bellows but the spark plug wire covers need major modifications to clear. Imagine the rectangular cross section of the cover cut off and re-shaped to a triangle cross section for the last three inches or so. Also had to remove the rear cover screw. Sounds bad but it looks neat now. I can send a photo if you like. Regards Henry From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Bill Huff Sent: Tuesday, 27 November 2012 1:26 PM To: chrysler300@xxxxxxxxxxxxxxx Subject: [Chrysler300] Dual Master Cylinder Conversion Am thinking to convert the single to dual master cylinder on the 300D. Anyone know if there would be interference problems with the valve covers? I have the bellows brake booster, will the spring lid holder on the bubble top of the master cylinder be a problem? Will the Master Cylinder just bolt in place of the old one? I would presume the push rod would need adjustment? Is an external residual pressure valve necessary? Bill Huff [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/