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Username Post: Reverse light wiring?        (Topic#335460)
Junkyardwarrior 
Contributor
Posts: 331

Loc: Yuma AZ
Reg: 02-25-15
05-03-16 02:28 PM - Post#2626035    

So, what I have on my hands is a 1973 Nova. It was a factory manual 6 cylinder car. I now have a sbc and a th400 in it. (No idea where the factory transmission is. I bought it without it.) I can't find the wiring for the reverse lights ANYWHERE. Any ideas?

"8 cylinders of why the f&@% not" - me


 
Ecklers AutoMotive
raycow 
DECEASED
Posts: 27999
raycow
Loc: San Francisco, CA
Reg: 11-26-02
05-04-16 08:04 PM - Post#2626351    
    In response to Junkyardwarrior

Are you saying there is no switch for the reverse lights on the stock steering column? Or are you saying that you no longer HAVE the stock steering column?

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
Junkyardwarrior 
Contributor
Posts: 331

Loc: Yuma AZ
Reg: 02-25-15
05-07-16 03:26 PM - Post#2626904    
    In response to raycow

What I'm saying is the car came from the factory with a manual transmission and I'm trying to wire the neutral safety switch and reverse lights to my hurst promatic shifter since it now has a th400 automatic in it.

"8 cylinders of why the f&@% not" - me


 
raycow 
DECEASED
Posts: 27999
raycow
Loc: San Francisco, CA
Reg: 11-26-02
05-07-16 09:14 PM - Post#2626976    
    In response to Junkyardwarrior

Well, lets start with the basics first.

1. Do you have reverse lights on the car now?

2. If yes, can you see them from inside the trunk?

3. If yes, do they have a wire connected to them?

4. If yes, note what color the wire is.

5. Now go inside the car and look under the dash for the other end of that same color wire. It should have a connector on it that originally went to a switch on the steering column.

6. If the connector is still there, it should have another wire which supplies switched power from the fuse block.

7. Jump the two terminals on the connector with a short piece of wire, turn on the ignition switch, and see if the reverse lights work.

8. If they light, you are most of the way home.

9. Do you have a neutral safety switch with 4 terminals mounted on the Hurst shifter or linked to it? If not, you will need to get one.

10. If you have the switch, use a continuity tester to determine which pair of terminals is used for the reverse lights. If you are lucky, they may be already marked.

11. Run wires from the connector under the dash to the terminals you identified on the switch.

12. If necessary, adjust the switch so the lamps light when the trans is in reverse.

13. You are done.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
lofat46 
Contributor
Posts: 260
lofat46
Loc: Bloomingdale, IL
Reg: 08-12-13
05-12-16 07:05 AM - Post#2627787    
    In response to Junkyardwarrior

I think the wiring should be built into the same connector as the turn signal switch. I had a '70 Nova SS with a 4-speed, can't imagine Chevy changed the setup between '70-'73. I replaced the stock Muncie shifter with a Hurst Competition Plus. The original Muncie had a rod that went from the shifter to a tang on the column under the hood. In order to get the key out the car had to be in reverse which locked the column, a theft deterrent. I left that rod off when I put in the Hurst and had to rotate the sleeve on the column by hand to get the backup lights to work and lock the ignition. Ever wonder why 4-speed GM muscle cars had the back-up lights on while moving forward? That's why. Anyway, I'm sure a three-on-the-tree had a similar rod from the trans shift arms. Perhaps the rod and trans lever from a '68-'74 Nova with an auto trans would solve your problem. Being able to rotate the sleeve and turn the back-up lights on while moving forward was a great way to deal with tail-gaters.





Edited by lofat46 on 05-12-16 07:07 AM. Reason for edit: No reason given.

 
Junkyardwarrior 
Contributor
Posts: 331

Loc: Yuma AZ
Reg: 02-25-15
05-20-16 10:22 AM - Post#2629502    
    In response to lofat46

Ok you see now that you explained it like that, it makes sense. Also would possibly explain why the key won't come out of the ignition....

"8 cylinders of why the f&@% not" - me


 
Junkyardwarrior 
Contributor
Posts: 331

Loc: Yuma AZ
Reg: 02-25-15
05-25-16 04:19 PM - Post#2630440    
    In response to lofat46

Ok, that was exactly why I couldn't get the key out, and now I have my reverse lights wired to my promatic. Thanks for the help.

"8 cylinders of why the f&@% not" - me


 
lofat46 
Contributor
Posts: 260
lofat46
Loc: Bloomingdale, IL
Reg: 08-12-13
05-31-16 01:20 PM - Post#2631375    
    In response to Junkyardwarrior

Glad it all worked out. Happy motoring!





 
Ecklers AutoMotive
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