Auto to 4 spd wiring help
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
Auto to 4 spd wiring help
From what I can figure out, I've got 2 switches that have to be wired when going from an automatic to manual trans, the neutral safety switch and the backup light switch.
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
From what I can figure out, I've got 2 switches that have to be wired when going from an automatic to manual trans, the neutral safety switch and the backup light switch.
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
How many times? Damn would be nice to know what year?
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
In General
Usually you will have to remove the auto wiring to the neutral safety at the shifter and tie the two purple wires together. If you want one you will need to install a clutch switch in its place. You will need to get a BU switch to activate the BU lights. That is the pink and green wires.
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
I don't need to know where the automatic switch is....I need to know where the bu switch is on the manual setup.
It's a 72, as it says on my profile (that's why I bothered to fill that out).
I'm not asking anybody to research anything, just looking for information. If you don't know, then there's no need for you to post. What exactly is the problem here? Did I kick your dog or something?
It's a 72, as it says on my profile (that's why I bothered to fill that out).
I'm not asking anybody to research anything, just looking for information. If you don't know, then there's no need for you to post. What exactly is the problem here? Did I kick your dog or something?
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
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Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
As mentioned by others, the bracket for the backup lite switch mounts onto two of the holes for your transmission's side case. There may be problems with this if you used a T10 in your '72 instead of the Muncie that it would have been equipped with if it was originally a four-speed car. If you did install a (7-bolt vs. 9-bolt side case) Muncie, most of the popular parts vendors have diagrams available online as well as in their catalogs that show the installation clearly. As for your neutral safety switch, if you really want to fight with it you can thread the wires from your clutch switch to the purple wires inside the console. Then you'll have to depress the clutch every time you start the car. When I did this conversion on my '70 I just put a jumper in there. BTW, if you absolutely can't get a picture of it any other way PM or email me and I'll take a pic of mine and send it to you....
Last edited by birdsmith; Jul 30, 2007 at 12:04 PM.
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
I am using a muncie to keep the conversion straight forward.
The neutral safety switch doesn't look to be much of a problem, just knowing which wires to use and that was covered.
I had a hard time finding any vendors that had a diagram with the b.u. switch on it. I'll have to dig around a bit more, but now I know where to look.
Chris
The neutral safety switch doesn't look to be much of a problem, just knowing which wires to use and that was covered.
I had a hard time finding any vendors that had a diagram with the b.u. switch on it. I'll have to dig around a bit more, but now I know where to look.
Chris
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
If you just get the bracket, switch, and its attendant linkage it's pretty much academic where it installs. If I remember correctly it'll only fit together one way. GM were pretty good about dork-proofing the assembly of their cars that way....
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
Chris, I just found the picture of the bracket installation in my 1970 Service Manual. If you have one it's listed under 'backing lamp switch replacement', fig. 24. The illustration shown is unfortunately for the little-used three-speed Saginaw transmission, but at any rate the bracket bolts up to the two lower-aft side case mounting holes (one on the bottom of the pattern and the other on the aft side of the pattern) and it only fits one way. Again, once you have the bracket in the right spot I believe you'll see that the switch and rod will only work one way- you can install the switch upside down, inside out, or backwards but if you do that you won't be able to install the rod correctly. Hope this helps.
Melting Slicks
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
I am using a muncie to keep the conversion straight forward.
The neutral safety switch doesn't look to be much of a problem, just knowing which wires to use and that was covered.
I had a hard time finding any vendors that had a diagram with the b.u. switch on it. I'll have to dig around a bit more, but now I know where to look.
Chris
The neutral safety switch doesn't look to be much of a problem, just knowing which wires to use and that was covered.
I had a hard time finding any vendors that had a diagram with the b.u. switch on it. I'll have to dig around a bit more, but now I know where to look.
Chris
The pink & green connector is for the backup lights. I have had too many troubles with the "adjustment" of the tranny mount back up switch that I plan on having a lighted manual toggle switch mounted in the ash tray area for the back up lights.
The yellow & purple connector is for the neutral safety switch. I plan on just joining the 2 wires together eliminating the switch on the clutch pedal.
Hope this helps.
John
Melting Slicks
Joined: Mar 2002
Posts: 2,140
Likes: 7
From: Ohio
The wire from the wiring harness to the backup light is in the area of the center consol for an automatic. The plug is the same for a four speed you just need to pass the wire through the firewall and plug it into the back up switch wiring. No cutting of wires required.
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
Cool, thanks everyone. I ordered up the switch and picked up the bracket/heat shield/rod/clips locally and it all makes sense.
I'm going to jump the ignition wires together to get rid of the clutch pedal hassle.
Thanks
Chris
I'm going to jump the ignition wires together to get rid of the clutch pedal hassle.
Thanks
Chris
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
From what I can figure out, I've got 2 switches that have to be wired when going from an automatic to manual trans, the neutral safety switch and the backup light switch.
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
Which wires do I wire into each switch?
Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too.
Thanks
Chris
I don't need to know where the automatic switch is....I need to know where the bu switch is on the manual setup.
It's a 72, as it says on my profile (that's why I bothered to fill that out).
I'm not asking anybody to research anything, just looking for information. If you don't know, then there's no need for you to post. What exactly is the problem here? Did I kick your dog or something?
It's a 72, as it says on my profile (that's why I bothered to fill that out).
I'm not asking anybody to research anything, just looking for information. If you don't know, then there's no need for you to post. What exactly is the problem here? Did I kick your dog or something?
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
I'm not real sure what wasn't clear about going from auto to a 4 speed. You asked what year the car is, my profile only shows one car, a 72. Again, I'm not really sure what wasn't clear about that. I thought the whole reason we post something in our profile was so time doesn't need to be wasted typing out what I drive every single time I post.
I'm very happy you have 35 years experience. It's a shame I don't know every detail about every year vette and I have to post a question about something I don't know and couldn't find in my reference material and the occasionally working search engine on this site.
If you're unwilling to help, or ask questions about what extra info you need (that can't be found in my profile) instead of posting what you did, then there's no reason to post at all.
I would not have come back with anything to "chastise" you if I you hadn't been completely rude to me first.
Everyone else that posted here had no problem understanding exactly what I meant and what car it was for. If everyone else around you has no problem, but you're confused and disgruntled, who has the problem?
If you want to add useful information then great, if not, go post somewhere else where someone will be more than happy to take your garbage. You won't find that on any thread I start.
I'm very happy you have 35 years experience. It's a shame I don't know every detail about every year vette and I have to post a question about something I don't know and couldn't find in my reference material and the occasionally working search engine on this site.
If you're unwilling to help, or ask questions about what extra info you need (that can't be found in my profile) instead of posting what you did, then there's no reason to post at all.
I would not have come back with anything to "chastise" you if I you hadn't been completely rude to me first.
Everyone else that posted here had no problem understanding exactly what I meant and what car it was for. If everyone else around you has no problem, but you're confused and disgruntled, who has the problem?
If you want to add useful information then great, if not, go post somewhere else where someone will be more than happy to take your garbage. You won't find that on any thread I start.
Last edited by okinawa86vette; Jul 30, 2007 at 08:23 PM.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
I'm not real sure what wasn't clear about going from auto to a 4 speed. You asked what year the car is, my profile only shows one car, a 72. Again, I'm not really sure what wasn't clear about that. I thought the whole reason we post something in our profile was so time doesn't need to be wasted typing out what I drive every single time I post.
I'm very happy you have 35 years experience. It's a shame I don't know every detail about every year vette and I have to post a question about something I don't know and couldn't find in my reference material and the occasionally working search engine on this site.
If you're unwilling to help, or ask questions about what extra info you need (that can't be found in my profile) instead of posting what you did, then there's no reason to post at all.
I would not have come back with anything to "chastise" you if I you hadn't been completely rude to me first.
Everyone else that posted here had no problem understanding exactly what I meant and what car it was for. If everyone else around you has no problem, but you're confused and disgruntled, who has the problem?
If you want to add useful information then great, if not, go post somewhere else where someone will be more than happy to take your garbage. You won't find that on any thread I start.
I'm very happy you have 35 years experience. It's a shame I don't know every detail about every year vette and I have to post a question about something I don't know and couldn't find in my reference material and the occasionally working search engine on this site.
If you're unwilling to help, or ask questions about what extra info you need (that can't be found in my profile) instead of posting what you did, then there's no reason to post at all.
I would not have come back with anything to "chastise" you if I you hadn't been completely rude to me first.
Everyone else that posted here had no problem understanding exactly what I meant and what car it was for. If everyone else around you has no problem, but you're confused and disgruntled, who has the problem?
If you want to add useful information then great, if not, go post somewhere else where someone will be more than happy to take your garbage. You won't find that on any thread I start.
OK, I apologize if I was rude to you in my first post, but too many ask questions here and assume everyone knows them and what cars they are working on at the time. It is not too much to ask to include that information in the original post. I dont think that is a real function of the profile. I answered you first post only a few minutes after it was posted. After 2 and a half hours and 5 post, you finally clarified that you wanted to know where the manual BU switch was located. Then someone answered that question. I guess they didnt have any problem understanding what you meant.
I add usefull information on this forum all of the time, even gave you the wiring information that you asked for. It is not your place to tell me to go post somewhere else. Take a hike. I`m done here.
Last edited by wombvette; Jul 30, 2007 at 11:10 PM.
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,606
Likes: 1
From: Las Cruces NM
I thought I was pretty clear about asking where the bu switch was located in the third sentence of my very first post in this thread.....
"Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too."
And yes, it is my place to tell you where to go when you come into my thread as rude as you were in the first post with no provocation. There were no assumptions made except that whoever would be answering the question would be willing to take the 3 seconds and two clicks to figure out what year car I have. If you are just here to provide a few small bits of useful information along with a ton of lip, then I'm very glad you're done here. Lots of folks post here all the time without acting like that.
"Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too."
And yes, it is my place to tell you where to go when you come into my thread as rude as you were in the first post with no provocation. There were no assumptions made except that whoever would be answering the question would be willing to take the 3 seconds and two clicks to figure out what year car I have. If you are just here to provide a few small bits of useful information along with a ton of lip, then I'm very glad you're done here. Lots of folks post here all the time without acting like that.
Melting Slicks
Joined: Sep 2004
Posts: 2,918
Likes: 13
From: NE Illinois IL
I thought I was pretty clear about asking where the bu switch was located in the third sentence of my very first post in this thread.....
"Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too."
And yes, it is my place to tell you where to go when you come into my thread as rude as you were in the first post with no provocation. There were no assumptions made except that whoever would be answering the question would be willing to take the 3 seconds and two clicks to figure out what year car I have. If you are just here to provide a few small bits of useful information along with a ton of lip, then I'm very glad you're done here. Lots of folks post here all the time without acting like that.
"Also, if anyone has a pic of how and where the backup switch is supposed to be mounted/actuated, that would be a big help too."
And yes, it is my place to tell you where to go when you come into my thread as rude as you were in the first post with no provocation. There were no assumptions made except that whoever would be answering the question would be willing to take the 3 seconds and two clicks to figure out what year car I have. If you are just here to provide a few small bits of useful information along with a ton of lip, then I'm very glad you're done here. Lots of folks post here all the time without acting like that.