speedometer
 

You came to the right place. First of all no body makes a direct replacment for our cars. Get an 80 inch one for a 1980 something truck. Then you have to replace your plastic adaptor with an older aluminum one and an older style gear. I did it and it works. Go here to order what you need.

http://www.transmissioncenter.net/sp...n_______va.htm

get this cable.

http://www.transmissioncenter.net/HPIM1719.JPG

Part number 4360.

Get this adaptor.

http://www.transmissioncenter.net/HPIM1458.JPG

Part number 13h.

and then get one of these long shaft gears. They can tell you which one by tire size and rear gear ratio.

http://www.transmissioncenter.org/HPIM1097.jpg

If you have the original speedo adapter those gears will not fit. That is unless you use the older style adapter. I would check with a speedo repair shop.. They should be able to make a cable the length you need

A quick search turned up this http://www.speedometersolutions.com/...eter_cable.htm

I did this on my F Body and it worked like a champ. It had a shorter cable and a plastic housing and plastic gear that I sold to someone else. He would have to buy all three pieces that I mentioned above. When you change tire size such as I did I had to source a new gear and good luck with finding one of those plastic ones for the plastic housing.

also better with the older style since the gears are more available.