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Neutral Safety Switch Plug Won't Fit #2297934 05/02/17 09:43 PM 05/02/17 09:43 PM
Joined: Jul 2016 Posts: 141 KY D DougR OP member
DougR OP member D Joined: Jul 2016 Posts: 141 KY	I just got the drivetrain reinstalled into the '69 Barracuda, and discovered the neutral safety switch plug does not fit onto the switch. They are both three-pin type, but the plug housing interferes with the switch before pin contact is made. Did Mopar change switch or plug designs through the years? I don't know whether to change the switch or the plug...

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2297975 05/02/17 11:09 PM 05/02/17 11:09 PM
Joined: Jan 2003 Posts: 32,991 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,991 Grand Prairie,Texas	Sounds like the plug dried out and won't expand over the switch. It is a snug fit to keep water out.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2297976 05/02/17 11:10 PM 05/02/17 11:10 PM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	I thought in 69 it was a single pin connector and it switched to a three pin connector in 70, but that isn't right. They switched the switch on 5/15/68 to the three pin. As mentioned these fit super tight so make sure all your blades are straight. Last edited by Morty426; 05/02/17 11:21 PM.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298112 05/03/17 02:58 AM 05/03/17 02:58 AM
Joined: Jan 2003 Posts: 4,161 Canada -- Posts: 4034 -Registe... 5 5thAve Doesn't care what this says anyway
5thAve Doesn't care what this says anyway 5 Joined: Jan 2003 Posts: 4,161 Canada -- Posts: 4034 -Registe...	There was a change to them at some point because i've had problems plugging them in with transmission swaps before.

Re: Neutral Safety Switch Plug Won't Fit [Re: 5thAve] #2298139 05/03/17 06:43 AM 05/03/17 06:43 AM
Joined: Jun 2004 Posts: 3,319 Chicago Burbs sthemi master
sthemi master Joined: Jun 2004 Posts: 3,319 Chicago Burbs	They got extra crispy if there are headers on the car, either way, probably need a new end. They are available. 69 should have 3 pin connector. Video Little Red Wagon Indy Nats,BurnoutContest

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298151 05/03/17 08:57 AM 05/03/17 08:57 AM
Joined: Feb 2010 Posts: 1,645 Phila. Pa. Mattax top fuel
Mattax top fuel Joined: Feb 2010 Posts: 1,645 Phila. Pa.	Yes. There are two types of 3 pin plug.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298177 05/03/17 11:03 AM 05/03/17 11:03 AM
Joined: May 2003 Posts: 13,202 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,202 aZLiViN	when we ran that style switch (3 pin), we'd upgrade to the newer connector/switch like the mid 90's trucks have.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298189 05/03/17 11:25 AM 05/03/17 11:25 AM
Joined: Jul 2016 Posts: 141 KY D DougR OP member
DougR OP member D Joined: Jul 2016 Posts: 141 KY	Thanks to all for your comments. It looks like I need a new connector pigtail. All the new ones I see listed have the wires coming off the side of the molding. My old one has the wires coming straight out the back.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298296 05/03/17 02:39 PM 05/03/17 02:39 PM
Joined: Dec 2013 Posts: 4,704 Wichita G GY3 master
GY3 master G Joined: Dec 2013 Posts: 4,704 Wichita	The other two terminals are for backup lights. I don't have them on my car so I ended up using a crimp splice on a single wire squeezing it down to where it just barely fit over the center pin. '63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298303 05/03/17 02:55 PM 05/03/17 02:55 PM
Joined: Jan 2003 Posts: 26,000 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 26,000 Rio Linda, CA	The 3-prong NSS design changed in '78, late design is on far right. The INTERNET, the MISinformation superhighway

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298422 05/03/17 06:24 PM 05/03/17 06:24 PM
Joined: Jul 2016 Posts: 141 KY D DougR OP member
DougR OP member D Joined: Jul 2016 Posts: 141 KY	Yep, I have the later design. The OD of the plastic ring around the outside is visibly larger, preventing the '69 plug from going on. I have ordered a new switch and harness to resolve this issue. Thanks to all.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298548 05/03/17 10:52 PM 05/03/17 10:52 PM
Joined: May 2003 Posts: 13,202 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,202 aZLiViN	mucho preferred....

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298589 05/03/17 11:47 PM 05/03/17 11:47 PM
Joined: Feb 2010 Posts: 1,645 Phila. Pa. Mattax top fuel
Mattax top fuel Joined: Feb 2010 Posts: 1,645 Phila. Pa.	I think you could keep your connector and change the switch. I beleive the internal comb stayed the same. If you want I can check Munroe's book.

Re: Neutral Safety Switch Plug Won't Fit [Re: Mattax] #2298622 05/04/17 12:37 AM 05/04/17 12:37 AM
Joined: Jul 2016 Posts: 141 KY D DougR OP member
DougR OP member D Joined: Jul 2016 Posts: 141 KY	I am getting both a new connector and switch. If I have problems getting things to work, I will come back in. Thanks.

Re: Neutral Safety Switch Plug Won't Fit [Re: DougR] #2298803 05/04/17 11:50 AM 05/04/17 11:50 AM
Joined: Sep 2003 Posts: 19,641 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,641 north of coder	were some of the front wheel drive switches usable on the 727/904 transmissions, or maybe just the switch plugs ?

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