Transmissions and Drivetrain Need help with your trans? Problems with your axle?

speedo help after t56 install

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Old Dec 24, 2012 | 02:04 PM
  #1  
grove's Avatar
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From: jacksonville, fl
Car: 1988 firebird
Engine: 305 tpi
Transmission: 95 T56
Axle/Gears: stock 10 built, yukon diff, 4.10
speedo help after t56 install

soo heres my dilema, ive installed a carbed 383 with t56. ribbed out engine harness and computer. now my problem is i dont remember where the wires went for the speedo. there no longer dangling in the trans tunnel. i have the new wire connector for the t56, but i dont know where to run the wires. i do have the sgi5 box the i will wire in also. but like i said im trying to find the old wires that ran from the speedo to the trans. any help on the wire colors and location would be nice. ive looked in the haynes manual didnt show me anything for the wiring or location.
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Old Dec 25, 2012 | 01:25 PM
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grove's Avatar
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Joined: Jun 2004
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From: jacksonville, fl
Car: 1988 firebird
Engine: 305 tpi
Transmission: 95 T56
Axle/Gears: stock 10 built, yukon diff, 4.10
Re: speedo help after t56 install

i really wanna get my speedo working. i do have the old VSS buffer box plugged in the car. but i dont have the harness that goes to the trans. what do i need to do from here? do i need to take my instrument cluster apart and search for the wires that way?
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Old Dec 26, 2012 | 07:24 AM
  #3  
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: speedo help after t56 install

Originally Posted by grove
im trying to find the old wires that ran from the speedo to the trans.
https://www.thirdgen.org/forums/elec...-disconec.html

JamesC
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