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Switched to T-5 wiring issue

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Old Dec 30, 2005 | 09:45 PM
  #1  
3GTAs1TA1Z28's Avatar
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
Switched to T-5 wiring issue

The Automatic has a 3 wire connector with diferent color wires than the colors of the 2 wire for the manual......

Is the wire color diference because the automatic harness is for a digital dash and the manual is for analog gauges?

Anyways my question is how can I wire the harness for the Automatic with the digital dash to a manual trans?

Trying to install now so speed is of the essence.....

Thanks in advance
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Old Jan 3, 2006 | 11:57 PM
  #2  
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
Come on has no one swapped to a T-5
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Old Jan 4, 2006 | 01:35 AM
  #3  
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
What color wires ?

The only three I can think of offhand on an auto is like a ppl, tan & blue one a single harness plug. That's for the torque converter lockup.
The two wires on the t-5 are green & blue IIRC and that's the reverse light switch.

Speed is recieved via cable or VSS.
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Old Jan 4, 2006 | 08:52 PM
  #4  
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
Originally posted by deadbird
What color wires ?

The only three I can think of offhand on an auto is like a ppl, tan & blue one a single harness plug. That's for the torque converter lockup.
The two wires on the t-5 are green & blue IIRC and that's the reverse light switch.

Speed is recieved via cable or VSS.
That is correct......So how and what do I wire my reverse wiring to? (IE the connector coming out of the tranny will go to what since the harness is designed for an automatic)
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Old Jan 4, 2006 | 10:33 PM
  #5  
deadbird's Avatar
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
On your park/neutral switch that was on your original auto shifter, there should be a corrosponding blue and green wire. This is the reverse light switch wiring. The switch is simply doing the same thing the light switch in your house does.

IIRC (and don't quote me on this one), whatever was in the tailshaft (VSS) from the auto should go into the t-5 w/o wiring or changing anything.
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Old Jan 4, 2006 | 11:07 PM
  #6  
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
I have the VSS hooked up....That's not the problem.... Are you saying I can run the the Green and Blue wire that plugged into my (automatic) shifter into the plug that goes into the tranny for the back up lights?
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Old Jan 4, 2006 | 11:29 PM
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Yep.
With the key in 'run' (if you have juice that is..).. if you jump the blue and green wire on the p/n switch, the reverse lights will come on.
The blue should be hot and is tied to the turn signal flasher wire (turn b/u fuse... hot in 'run'). The switch (p/n or on the t-5) just makes the connection (like a light switch).
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Old Jan 4, 2006 | 11:38 PM
  #8  
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
Well Thanks I will have to try that........
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Old Jan 4, 2006 | 11:41 PM
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
No prob... you wouldn't believe the lengths I went through to figure out it was only a stupid on/off switch when I rewired my 'bird.... as I forgot to label the wires and thought they were some important ECM wires...
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Old Jan 4, 2006 | 11:44 PM
  #10  
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From: Phoenix, AZ
Car: 85 87 87 91 92
Engine: 305 TPI 350 TPI 350 Carb
Transmission: B/W T-5 and 700R4
Originally posted by deadbird
No prob... you wouldn't believe the lengths I went through to figure out it was only a stupid on/off switch when I rewired my 'bird.... as I forgot to label the wires and thought they were some important ECM wires...

HAHAHA I got some scotch tape and a red marker to write numbers on the tape and a tablet to make notes of where it went.... I have done the guessing game before....it sucks
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Old Jun 7, 2007 | 09:43 AM
  #11  
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From: Miramichi, NB
Car: 86 Monte Carlo
Engine: Blown 489
Transmission: TH400
Axle/Gears: 9" 370s
Re: Switched to T-5 wiring issue

Originally Posted by deadbird
Yep.
With the key in 'run' (if you have juice that is..).. if you jump the blue and green wire on the p/n switch, the reverse lights will come on.
The blue should be hot and is tied to the turn signal flasher wire (turn b/u fuse... hot in 'run'). The switch (p/n or on the t-5) just makes the connection (like a light switch).
so if i just tie the blue wire into 12v wire, and can wire up the green one to an on/off switch i can manually control reverse lights?
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