T56 speedometer

[MarkM66]

Wanting to hook an electronic speedometer up to a T56. Anyone have a picture of the output on the tranny, and to which wires go where?

Thanks

[RatMalibu]

if you buy the connector from GM the wires are white...the connector is marked as to which wires are "A" and "B" thats why I gave the pinout info in the other thread...if you get a plug from a vehicle, the wires are color coded to match the colors the original poster gave in the other thread....the part number he gave has changed to the one I listed though if you buy a new one

[TitoJones]

Mark-

The pigtail doesn't care which ones go where.

Put one of the wires to a ground, and the other to the 12v signal wire on the speedo.

Tyler

[jasonsnova]

funny this thread pops up, i was gonna try to callibrate my speedo in my nova this afternoon (autometer elec phantom & t56) , but i was looking over the directions and the speedo has a ground,12v switch, and a sender input and sender output , so do i not use the sender out???? and just ground it???

[RatMalibu]

don't do anything with the sender output unless you need to connect it to an ECM

[RatMalibu]

Mark-

The pigtail doesn't care which ones go where.

Put one of the wires to a ground, and the other to the 12v signal wire on the speedo.

Tyler

the Helms manual listed one as a high signal and the other as the low...I'm guessing they are both within usable range for the speedo? I used the low

[MarkM66]

Thanks. I'm still contemplating on putting in an electric speedo, probably mounted on the column, or getting the Abbott unit and using the stock speedo.

[Van B]

You talking about the Nova? I'm surprised it is not "reserve met" on ebay.

[MarkM66]

You talking about the Nova? I'm surprised it is not "reserve met" on ebay.

It's going, just want to get this fixed before it does. I didn't need it, but it seems other do.

[Van B]

I ordered the pigtail from GM and just hooked up the wires. Went through the calibration procedure that Autometer laid out and wa la, it was done.

[jasonsnova]

yep....last night i gounded one of the wires from the t56 sender and the other to the input on the speedo, calibrated it ...and it works perfect....nice when something works perfect,on the 1st try!!!! lol!

[MarkM66]

I'm going to use the Abbott unit. Waiting on it's arrival.

[Van B]

By the way, what happened? You had mentioned that you wanted $30k for the car, then it gets over that on ebay and it is reserve not met.