65GS.com - Buick Gran Sport Enthusiasts!
General Discussion => Q & A => Topic started by: 35chevcoupe on March 04, 2021, 03:28:00 PM
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Just wondering where everyone is getting their neutral safety switches and what shape the connector is suppose to be ?
I'm seeing 3 different spade connector configurations , a side by side , a T type connector and one that's has the terminals at 90 degrees from each other .
Also are both wires purple ?
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John,
Manual transmission cars in '65 didn't have a neutral safety switch. Yes, both wires are 12 gauge purple and the ones I've seen had a "U" shaped jumper on some . I've also had harnesses that the purple wire just looped out of the fuse block and back in with no break in the wire.
The automatic transmission cars have had some different configurations also. For column shift automatics there is a short pair coming out of the main harness because the switch is near the bottom of the column. A floor shift automatic could have a tail coming out of the main harness with a connector about where the radio is. On this style harness , the console has a separate harness for the reverse lights and the neutral safety switch with a connector for the lights in the console. I have also seen '65 Gran Sport automatic cars that the wires to the console are solid all the way to the neutral safety switch.
Loren
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Loren , my mistake !
Meant to say back up light switch . Too many late nights without sleep i guess . I see in the manual the switch is the same for 3 and 4 speeds .
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John,
I believe you are correct. I will see what I can find in the parts book.
Being Olds and Pontiac used the same 3 speed, I wonder if Fusick might have what is needed for the mount
Loren
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Loren , I didn't see anything in Fusick , I did see a switch in Ames and it looks like it will work . If anything ill just remove the plastic molded connector if it is wrong and replace it with the correct one .
I have a bracket that the switch mounts to , its bent up a little bit but ill salvage it . Are you still planning to put a 3 speed in ur post car ?
The bracket looks like it may not be to hard to reproduce if you need one .
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John, if it's the same switch and connector that the 4-speed uses, here's what I bought that has the correct connector:
https://www.thepartsplaceinc.com/product/buick-skylark-gs-regal-gn-backup-light-switch-assembly-4-speed/19659 (https://www.thepartsplaceinc.com/product/buick-skylark-gs-regal-gn-backup-light-switch-assembly-4-speed/19659)
I also bought a bracket that worked well, but it appears you already have one. At any rate, I believe this is the bracket:
https://www.ebay.com/itm/Chevy-Backup-Lights-Switch-Bracket-T-10-Trans-55-72/350404239913?hash=item5195b86229:g:r9cAAOxyZw5RZVON (https://www.ebay.com/itm/Chevy-Backup-Lights-Switch-Bracket-T-10-Trans-55-72/350404239913?hash=item5195b86229:g:r9cAAOxyZw5RZVON)
Chuck
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Chuck , The Faxon manual shows the 3 and 4 speed to be the same part number for the switch just different mounting bracket .
This is the 3 speed bracket and I'm guessing it may be hard to find . Looked in the Fusick and Ames catalog and didn't see it .
Where did you get your clutch rod boot that goes thru the firewall ? I may order that at the same time , I see Ames perf has both .
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The Parts Place
Boot: https://www.thepartsplaceinc.com/part/all-year/&part_no=MT3218Z (https://www.thepartsplaceinc.com/part/all-year/&part_no=MT3218Z)
Boot Retainer Plate: https://www.thepartsplaceinc.com/part/all-year/&part_no=MT3691A (https://www.thepartsplaceinc.com/part/all-year/&part_no=MT3691A)
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I found some photos on a GTO site same switch as ours.
https://www.gtoforum.com/threads/67-gto-3-speed-dearborn-reverse-light-switch-help.136547/ (https://www.gtoforum.com/threads/67-gto-3-speed-dearborn-reverse-light-switch-help.136547/)
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GM part # 9777322 - Bracket ??
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I found some photos on a GTO site same switch as ours.
https://www.gtoforum.com/threads/67-gto-3-speed-dearborn-reverse-light-switch-help.136547/ (https://www.gtoforum.com/threads/67-gto-3-speed-dearborn-reverse-light-switch-help.136547/)
Yup that's the same one . I would imagine olds pont and buick all used the same bracket as long as they were equipped with the dearborn 3 speed . The light duty 3 speed is probably different than the HD 3 speed .
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Loren , I didn't see anything in Fusick , I did see a switch in Ames and it looks like it will work . If anything ill just remove the plastic molded connector if it is wrong and replace it with the correct one .
I have a bracket that the switch mounts to , its bent up a little bit but ill salvage it . Are you still planning to put a 3 speed in ur post car ?
The bracket looks like it may not be to hard to reproduce if you need one .
John,
Being the GS was originally a 3 speed car, I still plan to go with the 3 speed. I also need to find a drive shaft. Do you know what the length is?
Loren
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Loren , I'm still working on the drive shaft length . I do have a driveshaft here but seems a little long . The Faxon manual shows a different part number between 3 spd and 4 spd but not sure if the shaft its self is different or just the yoke .
Looks like 3 spd is suppose to have a red and blue stripe and the 4 spd has a white and purple . Maybe someone with a 4 spd can measure the length of they're 4 spd from where it mounts to the face of the bell housing to the end of the tailshaft . I wouldn't be surprised if the were the same length , maybe the only difference is the slip yoke .
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So my back up light switch arrived today but I must be missing something . Are these just a generic switch that we have get an ACME adapter kit for also ? or is there an extension wire that is suppose to there between the factory plug and the switch terminals .
Last time i tried to plug a female spade connector into a female round connector it didn't work very well .
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Switch should have two Lead wires with water proof connections at least that’s what they said! There should be two lead wires that come off the engine side of the firewall fuse box and run down underneath also with water proof connectors that the switch side should plug into! One side female other side male
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Switch should have two Lead wires with water proof connections at least that’s what they said! There should be two lead wires that come off the engine side of the firewall fuse box and run down underneath also with water proof connectors that the switch side should plug into! One side female other side male
Thanks for the info jon . I see Im just missing ANOTHER piece of the puzzle . Looks like there is another short two wire harness that Im
missing that connects the main harness to the switch .
Anyone know the colors of that harness extension ? I see it starts out as pink and a purple wire .
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Your very weclome! :headbang: We are using the site and sharing knowledge as it is intended for! On my 3 speed post there were no wires on the firewall so I don't think it ever had back up lights! They were a option! Some of the times the wires were taped back in the harness even if the car didn't come from the factory with back up lights! I had very nice block off plates that go in the rear bumper and wanted to use them! Got to many parts not on cars! I also will be using the radio delete on the post car even though it had a radio! The weirder the better!? Now I just need to find a deck lid ski rack and I will be all set! Lol
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I will have to look at some harnesses and wiring diagrams! For color ! Not sure if the 4 speed and three speed are different!? There is a diagram of the 4 speed in the chassis manual for the 43000 and 44000 models! Here is a shot of it, not the best! Wire shown is black coming out of harness!
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I will have to look at some harnesses and wiring diagrams! For color ! Not sure if the 4 speed and three speed are different!? There is a diagram of the 4 speed in the chassis manual for the 43000 and 44000 models! Here is a shot of it, not the best! Wire shown is black coming out of harness!
Yeah that's the photo I found also . The new harness Loren made for me has a pink and purple wire coming out of the harness up by the main plug about 3 inches long . I'm guessing its maybe because back up lights were an option and the cars without them they simply didn't want an extra 2 feet of wire just hanging there so they had a connector there .
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I will have to look at some harnesses and wiring diagrams! For color ! Not sure if the 4 speed and three speed are different!? There is a diagram of the 4 speed in the chassis manual for the 43000 and 44000 models! Here is a shot of it, not the best! Wire shown is black coming out of harness!
Yeah that's the photo I found also . The new harness Loren made for me has a pink and purple wire coming out of the harness up by the main plug about 3 inches long . I'm guessing its maybe because back up lights were an option and the cars without them they simply didn't want an extra 2 feet of wire just hanging there so they had a connector there .
Never mind me !!!!
After CLOSER examination I have come to realize I was looking at the wrong half of the harness . :tard: :icon_scratch: :dontknow:
I hope Loren didn't see this post !
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Yeah that's the photo I found also . The new harness Loren made for me has a pink and purple wire coming out of the harness up by the main plug about 3 inches long . I'm guessing its maybe because back up lights were an option and the cars without them they simply didn't want an extra 2 feet of wire just hanging there so they had a connector there .
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Never mind me !!!!
After CLOSER examination I have come to realize I was looking at the wrong half of the harness . :tard: :icon_scratch: :dontknow:
I hope Loren didn't see this post !
[/quote]
You're caught! lol
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The purple wire and the pink wire are for the starter circuit.
There should be a pair of black wires that look like lamp cord [ it's called parallel wire ] for the reverse lights. All manual transmission cars should have these wires.
Loren
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:glasses9:
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The purple wire and the pink wire are for the starter circuit.
There should be a pair of black wires that look like lamp cord [ it's called parallel wire ] for the reverse lights. All manual transmission cars should have these wires.
Loren
What he said....I also am not so sure that auto and stick harnessess did not share those two black wires if the car has the code for factory back up lamps. Every harness I have seen has the two wires even if they were automatics with back up lights....they plugged in at floor shifted autos and left the two wires hanging there.
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The purple wire and the pink wire are for the starter circuit.
There should be a pair of black wires that look like lamp cord [ it's called parallel wire ] for the reverse lights. All manual transmission cars should have these wires.
Loren
What he said....I also am not so sure that auto and stick harnessess did not share those two black wires if the car has the code for factory back up lamps. Every harness I have seen has the two wires even if they were automatics with back up lights....they plugged in at floor shifted autos and left the two wires hanging there.
66 GS had those backup light wires on both manual and auto cars. They're on the engine compartment side of the fuse block. Backup lights were standard in 66.
Interior wiring harness was auto or manual specific, and more variations for cars with consoles, consolettes, or manual/tach.
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I parted out an automatic car and it was wired right into the console harness for back up lamps. The same car also had the two black wires with bullet style connectors hanging from the firewall side into a little clip that was below your feet on the outside of the firewall. I am assuming this harness was universal to any car with back up lamps ordered. My stick car has them and I used a new 60?s corvette switch that plugs into the two black wires and appears correct as far as what I have seen. I believe I saved other 65 harnesses that did NOT have the two black wires.