Quote:

It's a Tachograph Cable Drive Shaft, 140" Long, .150" Dia. Core, for a 74-77 Medium-Heavy truck, Model 1000, according to my parts book.

What's a tachograph?



a tachograph was a device installed on commercial vehicles and fleet vehicles to monitor the speed that the drive maintained and at what time they maintained that speed.

http://intranet.kingsmac.co.uk/depts/phy...0Tachograph.htm