You have a kink in the outer sheath of the speedometer drive cable
somewhere. On my truck with the 4 speed, it was just outside the
transmission. A cable tie to a judicious spot on the master cylinder
straightened it out and it has worked fine since.
Bruce Kettunen
57 3200
Mt. Iron, MN
>All this talk about speedometers, and guess what? I'm having trouble with my
>speedometer.
>
>When driving it will all of a sudden start making noises, almost a howling
>noise, and the needle fly's up to any where between 40-80+ MPH, at times
>wrapping the speedo back around to 0.
>
>Any ideas?
>
>Oh yeah, the truck is a 1959 GMC 1/2 ton. I do have a parts truck with
>another speedo, but it is quite a ways away.
>
>Blaine Dumkee
>59 GMC 9314
>Fort Smith NT
>Canada
>http://www.chevytrucks.org/users/wayne/blaine59.jpg
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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