Carl is the better and more thorough reader. I found option 357 in another list that did not include the word "vacuum". Vacuum door locks were optional on any 4-dr 1963-64 Chrysler. Another member has confirmed vacuum locks on his '64 NY Salon 4dr sedan. The Imperials of those years had electric door locks available. Thanks for the follow-through Carl! Rich Barber From: C Bilter [mailto:cbilter@xxxxxxxxx] Sent: Tuesday, February 28, 2012 9:09 PM To: 'Don Warnaar'; 'John'; 'Rich Barber' Cc: Chrysler300@xxxxxxxxxxxxxxx Subject: RE: [Chrysler300] Power Locks-1963-Imp, only & 1964 all =Fire By Wire Referring to John Holst's online information for 1964 as suggested, one will find the following: The excerpt from the 1964 service manual (page 8-80) below refers to the power electric door lock system available on the Imperial, although the 1964 service manual does not explicitly state Imperial as the 1963 service manual does. The information on the power vacuum door locks is available in section 23 of the service manual for both 1963 and 1964. In the 1964 service manual, the diagnosis information for vacuum door locks is listed on pps.23-62 through 23-64. Additionally, John has posted a copy of "1964 Chrysler options/interior/exterior color codes and fabric swatches." Refer to the factory specifications link and look under "factory installed options and accessories" listing for "power equipment" and find code "357 - door locks - vacuum - 4 door models only." No mention of electric door locks for Chrysler models. In the 1964 Chrysler owners manual, page 13, the single door lock switch located to the right of the steering wheel is pictured and its operation is described. The power door lock switches in each front door armrest console, located further up from the power window switches, were only used with electric door locks on the 1964 Imperial. The wiring diagram (Fig. 10) in the 1964 service manual that shows the electric power door locks is on page 8-104 and it indicates it applies to the Imperial. I found no wiring diagram for electric door locks for Chrysler models, unless this was some sort of mid-year production change (I don't think so). If my interpretation of the documentation is incorrect please advise accordingly. Hope this is helpful. 300ly, Carl Bilter _____ From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Don Warnaar Sent: Tuesday, February 28, 2012 8:21 PM To: 'John'; Rich Barber Cc: Chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] Power Locks-1963-Imp, only & 1964 all =Fire By Wire Sounds like the debate is still open on when the change from vacuum to electric took place. Any others out there with more information? Don Warnaar ----- Original Message ----- From: Rich Barber<mailto:c300@xxxxxxx <mailto:c300%40ez2.net> > To: 'Don Warnaar'<mailto:300country@xxxxxxx <mailto:300country%40msn.com> > ; 'John'<mailto:spiers@xxxxxxxxxxxxxx <mailto:spiers%40rocketmail.com> > Cc: Chrysler300@xxxxxxxxxxxxxxx <mailto:Chrysler300%40yahoogroups.com> <mailto:Chrysler300@xxxxxxxxxxxxxxx <mailto:Chrysler300%40yahoogroups.com> > Sent: Tuesday, February 28, 2012 9:12 PM Subject: [Chrysler300] Power Locks-1963-Imp, only & 1964 all =Fire By Wire >From the 1964 Chrysler Service Manual: POWER EQUIPMENT ELECTRIC DOOR LOCKS The electric door lock is operated by a push-pull double action solenoid attached by a connecting rod to the door latch locking lever. By pressing the single pole double throw switch mounted on the right and left front door trim panel, a solenoid in each of the four doors is actuated, moving the latch locking lever into the lock or unlock position. All doors may be locked or unlocked either mechanically or electrically. To lock mechanically push the front door handle to the forward position and depress the rear door locking button. To lock electrically depress the switch to lock or lift upward to unlock the doors. The wiring diagram includes a diagram showing the switches in the front doors connected to a door lock relay that then feeds solenoids in all four doors. The options list shows the power door locks available on all 4-drs and retailing for $56.00 The 1963 Chrysler Service Manual indicates a similar system to be available on the Imperial, only. Readers may wish to acquaint themselves with the multitude of service, parts and owner's manuals at Dual Member John Holst's excellent site. www.jholst.net Click on Chrysler 300 Resources to access the list of available manuals. Thanks to John for assembling this easily addressed treasure trove of factual information. C-300-K'ly, Rich Barber Brentwood, 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! 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