AD Speedometer Connection - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69l46vert · 09-03-2015, 03:45 PM

54 GMC.I'm at the point where it's a good time to run the speedometer cable. What I would like is a single cable from the transfer case (connection is at far rear) to the speedometer.
Now my donor vehicle is a 72 K2500. It looks as if a cable around 80 inches will be plenty long.

The only remnants I have are at the t/case. The cable was cut off there.

My big question is: Do the old 54 speedo heads have the same connection as the 72 speedo heads? The 54 appears to take a screw on collar type but I don't have the 72 to look at anymore.
What do you think would work for me to connect the NP205 to the 54 speedo head? Thanks Rick

Edit: The 54 speedo head has a 5/8-18 male thread

09-03-2015, 03:45 PM	#1
69l46vert Registered User Join Date: May 2007 Location: Buxton Maine Posts: 137	AD Speedometer Connection 54 GMC.I'm at the point where it's a good time to run the speedometer cable. What I would like is a single cable from the transfer case (connection is at far rear) to the speedometer. Now my donor vehicle is a 72 K2500. It looks as if a cable around 80 inches will be plenty long. The only remnants I have are at the t/case. The cable was cut off there. My big question is: Do the old 54 speedo heads have the same connection as the 72 speedo heads? The 54 appears to take a screw on collar type but I don't have the 72 to look at anymore. What do you think would work for me to connect the NP205 to the 54 speedo head? Thanks Rick Edit: The 54 speedo head has a 5/8-18 male thread __________________ 1954 GMC 101-24 Converting to 4WD Stock 54 GMC 150 frame Dana 44 Front Dana 60 Rear SBC350/SM465/NP205 Last edited by 69l46vert; 09-03-2015 at 03:50 PM.



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