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Author Topic: Neutral safety switch  (Read 488 times)
Tuco
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« on: October 19, 2021, 08:00:24 AM »

Working on a 69 Charger 440 auto.  The wire harness for the neutral safety/reverse light switch only has two wires in the connector at the switch.  It was not hooked up. I purchased a new 3 wire pigtail and a new switch. The problem is when I screw the switch down tight and shift the transmission the whit plastic plunger on the switch gets caught between the fingers of the selector and locks it up.

Also when the shifter is in park the finger depresses the reverse button correctly but when taken out of park and attempt to go back the finger hangs up on the reverse button and wonít allow further travel.

The previous owner had grounded the firewall relay so that it would start in any gear.  Reverse lights are not hooked up. I guess I know why now.

Iím told that the transmission is out of a 1970 383 car. PK 3410668L   Iíve tried looking for different switches but they all look like the same ones. Part# NS11, NS11T and 1S4937.

Iím wondering if the selector arm inside the transmission is the wrong one or missing something.   shruggy


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John_Kunkel
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« Reply #1 on: October 19, 2021, 10:34:07 AM »

There are numerous reports of new reproduction NSS's (top in pic below) being too long and this will account for your problem.


* Too Long.jpg (186.88 KB, 613x585 - viewed 185 times.)
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Pardon me but my karma just ran over your dogma.
Nacho-RT74
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« Reply #2 on: October 19, 2021, 03:59:14 PM »

Roster comb nylon "skate" is broken

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Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html
Tuco
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« Reply #3 on: October 19, 2021, 06:43:07 PM »

Thanks!  Any idea where to find a replacement rooster comb?  It looks like itís riveted on.  So possibly have to replace the selector shaft itself?  I was wondering if something was missing.

The switch is also maybe too long.  Damn cheap Chinese parts!  I think I have the old one that may still work if I can get the nylon part replaced.

Anyone know of a source for parts?

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Nacho-RT74
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« Reply #4 on: October 20, 2021, 02:43:12 AM »

I don't think the lenght or deep of the switch could be a problem on this specific issue. The nylon button is just a preload system while the ball serves the dual switch function ( reverse and neutral ground )

Now about the nylon skate. It is serviceable, just drilling the rived and using a new one. I know it was available somewhere sometime ago, but can't recall who has those
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Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html
Nacho-RT74
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« Reply #5 on: October 20, 2021, 02:45:32 AM »

https://www.amazon.com/Rooster-Comb-Neutral-Safety-Insulator-Chrysler-22229-03/dp/B072KHH1ZX

on an ebay search by PN

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=Chrysler+Detent+Lever+Rooster+Comb+Neutral+Safety+Backup+Insulator+Kit+22229-03&_sacat=0

This was a quick search. Mostly sure local transmission shops could get those.
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Venezuelan RT 74 400 4bbl, 727, 8.75 3.23 open. Now stroked with 440 crank and 3.55 SG. Here is the History and how is actually: http://www.dodgecharger.com/forum/index.php/topic,7603.0/all.html
http://www.dodgecharger.com/forum/index.php/topic,25060.0.html
Tuco
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« Reply #6 on: October 20, 2021, 07:32:04 AM »

Thanks Nacho.
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