1970 B Body Rear defrost/top switch
#2513737
06/27/18 12:33 AM
06/27/18 12:33 AM
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Joined: Mar 2012
Posts: 367 Akron, Ohio
VegasCharger
OP
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OP
enthusiast
Joined: Mar 2012
Posts: 367
Akron, Ohio
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Hello, so I bought a complete 1970 B Body standard dash frame and it has a rear defrost switch. When I removed the switch I noticed on the other side of the button there was the wording "TOP" on it. Did Chrysler use the same switch set-up for both rear defrost cars and convertibles? Just flipped the button to the specific application? Same switch? Wiring? pics below Thanks in advance.
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Re: 1970 B Body Rear defrost/top switch
[Re: VegasCharger]
#2513839
06/27/18 11:47 AM
06/27/18 11:47 AM
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Joined: Jan 2003
Posts: 27,480 So Cal
autoxcuda
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So Cal
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That not rear defrost.
That is for the power rear window in a station wagon.
68-69 are the same way with a large rocker switch handle put on the same basic switch.
68-72 Oldsmobile is same way. I suspect many other manufacturers did the same thing.
Bummer 67-69 Abodies didn’t have a wagon in US. So no cars to scab those from.
Last edited by autoxcuda; 06/27/18 11:48 AM.
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Re: 1970 B Body Rear defrost/top switch
[Re: autoxcuda]
#2514013
06/27/18 05:09 PM
06/27/18 05:09 PM
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Joined: Mar 2008
Posts: 9,550 Sacramento CA
Morty426
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master
Joined: Mar 2008
Posts: 9,550
Sacramento CA
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That not rear defrost.
That is for the power rear window in a station wagon.
68-69 are the same way with a large rocker switch handle put on the same basic switch.
68-72 Oldsmobile is same way. I suspect many other manufacturers did the same thing.
Bummer 67-69 Abodies didn’t have a wagon in US. So no cars to scab those from. That's funny it looks exactly like the one in my 70 hemi GTX
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Re: 1970 B Body Rear defrost/top switch
[Re: VegasCharger]
#2514031
06/27/18 05:36 PM
06/27/18 05:36 PM
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Joined: Mar 2012
Posts: 367 Akron, Ohio
VegasCharger
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OP
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Joined: Mar 2012
Posts: 367
Akron, Ohio
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Thanks for all of the replies thus far. So it looks like it might be a 3 in 1 switch. 1. Rear Defrost 2. Top 3. Rear PW for wagons So "R. WIND." meant rear window either for defrost on a non wagon car or for power window on a station wagon car. What if you wanted rear defrost for a rear power window on a station wagon lol? JK
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Re: 1970 B Body Rear defrost/top switch
[Re: Morty426]
#2514229
06/28/18 12:28 AM
06/28/18 12:28 AM
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Joined: Jan 2003
Posts: 27,480 So Cal
autoxcuda
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Too Many Posts
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So Cal
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Here is a picture - unrestored car
A station wagon rear window switch is momentary switch. When you let go of it, it goes back center to the off position. One direction is up the other is down. Just like a door power window switch. Power top switches are the same. All the defogger switches I have/had 71-74 B-body, 67-up A-body and E-body have three positions: off, low, high. And they click and stay in each position. I think the 70 defogger switch shown just uses the lever and case from a power top and rear station wagon window. Not the switch internals itself. Craig, Barry, VegasCharger: do your defogger switches return to the center off position when you let go of them? Or do they have click to hold them in each position? JS Restorations
Last edited by autoxcuda; 06/28/18 12:40 AM.
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Re: 1970 B Body Rear defrost/top switch
[Re: autoxcuda]
#2514266
06/28/18 02:30 AM
06/28/18 02:30 AM
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Joined: Mar 2008
Posts: 9,550 Sacramento CA
Morty426
master
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master
Joined: Mar 2008
Posts: 9,550
Sacramento CA
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Here is a picture - unrestored car
A station wagon rear window switch is momentary switch. When you let go of it, it goes back center to the off position. One direction is up the other is down. Just like a door power window switch. Power top switches are the same. All the defogger switches I have/had 71-74 B-body, 67-up A-body and E-body have three positions: off, low, high. And they click and stay in each position. I think the 70 defogger switch shown just uses the lever and case from a power top and rear station wagon window. Not the switch internals itself. Craig, Barry, VegasCharger: do your defogger switches return to the center off position when you let go of them? Or do they have click to hold them in each position? JS Restorations My switch is three positions with detents.
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Re: 1970 B Body Rear defrost/top switch
[Re: VegasCharger]
#2514316
06/28/18 09:51 AM
06/28/18 09:51 AM
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Joined: Aug 2007
Posts: 603 Mass
charge70
mopar
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mopar
Joined: Aug 2007
Posts: 603
Mass
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The knob/button is the same,the switch is definitely not the same.The size of the wire is smaller on the defog switch compared to the power top switch.The wagon rear window and p-top switches may be the same,I'm not sure.
1970 Dodge Charger R/T S.E.
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1970 Dodge Charger 500 383/4-speed w/A.C.
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